{"group":{"id":1,"name":"Community","lockable":false,"created_at":"2012-01-18T18:02:15.000Z","updated_at":"2026-04-06T14:01:22.000Z","description":"Problems submitted by members of the MATLAB Central community.","is_default":true,"created_by":161519,"badge_id":null,"featured":false,"trending":false,"solution_count_in_trending_period":0,"trending_last_calculated":"2026-04-06T00:00:00.000Z","image_id":null,"published":true,"community_created":false,"status_id":2,"is_default_group_for_player":false,"deleted_by":null,"deleted_at":null,"restored_by":null,"restored_at":null,"description_opc":null,"description_html":null,"published_at":null},"problems":[{"id":369,"title":"Basic electricity in a dry situation","description":"\u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \r\n\r\nThis is a very hypothetical situation between two individuals in a very dry atmosphere. \r\n\r\nHe came running in rubber boots when she was combing her hair. \r\n\r\nAround N number of electrons moved from one person to the other upon contact. \r\n\r\nWhat was the voltage between them before the contact? \r\n\r\nAssume it is a simple RC type electrical circuit with equivalent capacitance of about 16 pico farads. \r\n\r\nPlease assume that every electron carries about 160 zepto coulombs.\r\n\r\nFor more info on capacitors: \u003chttps://en.wikipedia.org/wiki/Capacitor\u003e","description_html":"\u003cp\u003e\u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889\u003c/p\u003e\u003cp\u003eThis is a very hypothetical situation between two individuals in a very dry atmosphere.\u003c/p\u003e\u003cp\u003eHe came running in rubber boots when she was combing her hair.\u003c/p\u003e\u003cp\u003eAround N number of electrons moved from one person to the other upon contact.\u003c/p\u003e\u003cp\u003eWhat was the voltage between them before the contact?\u003c/p\u003e\u003cp\u003eAssume it is a simple RC type electrical circuit with equivalent capacitance of about 16 pico farads.\u003c/p\u003e\u003cp\u003ePlease assume that every electron carries about 160 zepto coulombs.\u003c/p\u003e\u003cp\u003eFor more info on capacitors: \u003ca href = \"https://en.wikipedia.org/wiki/Capacitor\"\u003ehttps://en.wikipedia.org/wiki/Capacitor\u003c/a\u003e\u003c/p\u003e","function_template":"function V = volts(N)\r\n  V = 10000;\r\nend","test_suite":"%%\r\nN = 10^10;\r\nV = 150;\r\nassert(volts(N)\u003eV/pi)\r\n%%\r\nN = 10^11;\r\nV = 700;\r\nassert(volts(N)\u003cV*pi)\r\n%%\r\nN = 10^12;\r\nV = 10000;\r\nassert(volts(N)\u003eV/sqrt(pi))\r\n","published":true,"deleted":false,"likes_count":8,"comments_count":4,"created_by":166,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":596,"test_suite_updated_at":"2012-02-20T20:05:18.000Z","rescore_all_solutions":false,"group_id":34,"created_at":"2012-02-20T20:05:18.000Z","updated_at":"2026-04-07T19:14:18.000Z","published_at":"2017-10-16T01:45:05.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\\n\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eThis is a very hypothetical situation between two individuals in a very dry atmosphere.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eHe came running in rubber boots when she was combing her hair.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eAround N number of electrons moved from one person to the other upon contact.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eWhat was the voltage between them before the contact?\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eAssume it is a simple RC type electrical circuit with equivalent capacitance of about 16 pico farads.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003ePlease assume that every electron carries about 160 zepto coulombs.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eFor more info on capacitors:\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"https://en.wikipedia.org/wiki/Capacitor\\\"\u003e\u003cw:r\u003e\u003cw:t\u003e\u0026lt;https://en.wikipedia.org/wiki/Capacitor\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e\u0026gt;\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"},{"id":55405,"title":" Current through resistor","description":"Three resistors (R2, R3, R4) are connected in parallel as shown in the figure.  If this combination is connected in series with a battery V (volts) and a resistor R1 (ohms).  Find the current I (in amps) through the R4 resistor? Round to the nearest 100th.\r\n","description_html":"\u003cdiv style = \"text-align: start; line-height: 20.4333px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: rgb(0, 0, 0); white-space: normal; \"\u003e\u003cdiv style=\"block-size: 154.5px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 77.25px; transform-origin: 407px 77.25px; vertical-align: baseline; \"\u003e\u003cdiv style=\"block-size: 63px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 31.5px; text-align: left; transform-origin: 384px 31.5px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; \"\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 243px 8px; transform-origin: 243px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003eThree resistors (R2, R3, R4) are connected in parallel as shown in the figure.\u003c/span\u003e\u003c/span\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 4px 8px; transform-origin: 4px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003e  \u003c/span\u003e\u003c/span\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 129px 8px; transform-origin: 129px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003eIf this combination is connected in series with a battery V (volts) and a resistor R1 (ohms).\u003c/span\u003e\u003c/span\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 4px 8px; transform-origin: 4px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003e  \u003c/span\u003e\u003c/span\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 209.5px 8px; transform-origin: 209.5px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003eFind the current I (in amps) through the R4 resistor? 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data-image-state=\"image-loaded\"\u003e\u003c/div\u003e\u003c/div\u003e\u003c/div\u003e","function_template":"function I = findCurrent(V,R1,R2,R3,R4) % Do not edit this line.\r\n  % insert your code here\r\nend % Do not edit this line.\r\n\r\n","test_suite":"%%\r\nassert(isequal(findCurrent(12,2,4,6,10),0.59));\r\n\r\n%%\r\nassert(isequal(findCurrent(20,0,8,8,4),5));\r\n\r\n%%\r\nassert(isequal(findCurrent(72,7,3,3,3),3));","published":true,"deleted":false,"likes_count":8,"comments_count":1,"created_by":542228,"edited_by":223089,"edited_at":"2022-10-06T07:24:28.000Z","deleted_by":null,"deleted_at":null,"solvers_count":554,"test_suite_updated_at":"2022-10-06T07:24:28.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2022-09-02T16:06:11.000Z","updated_at":"2026-04-07T17:11:50.000Z","published_at":"2022-09-02T16:06:11.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\u003cw:document 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electricity in a dry situation","description":"\u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \r\n\r\nThis is a very hypothetical situation between two individuals in a very dry atmosphere. \r\n\r\nHe came running in rubber boots when she was combing her hair. \r\n\r\nAround N number of electrons moved from one person to the other upon contact. \r\n\r\nWhat was the voltage between them before the contact? \r\n\r\nAssume it is a simple RC type electrical circuit with equivalent capacitance of about 16 pico farads. \r\n\r\nPlease assume that every electron carries about 160 zepto coulombs.\r\n\r\nFor more info on capacitors: \u003chttps://en.wikipedia.org/wiki/Capacitor\u003e","description_html":"\u003cp\u003e\u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889 \u0026#9889\u003c/p\u003e\u003cp\u003eThis is a very hypothetical situation between two individuals in a very dry atmosphere.\u003c/p\u003e\u003cp\u003eHe came running in rubber boots when she was combing her hair.\u003c/p\u003e\u003cp\u003eAround N number of electrons moved from one person to the other upon contact.\u003c/p\u003e\u003cp\u003eWhat was the voltage between them before the contact?\u003c/p\u003e\u003cp\u003eAssume it is a simple RC type electrical circuit with equivalent capacitance of about 16 pico farads.\u003c/p\u003e\u003cp\u003ePlease assume that every electron carries about 160 zepto coulombs.\u003c/p\u003e\u003cp\u003eFor more info on capacitors: \u003ca href = \"https://en.wikipedia.org/wiki/Capacitor\"\u003ehttps://en.wikipedia.org/wiki/Capacitor\u003c/a\u003e\u003c/p\u003e","function_template":"function V = volts(N)\r\n  V = 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10000;\r\nassert(volts(N)\u003eV/sqrt(pi))\r\n","published":true,"deleted":false,"likes_count":8,"comments_count":4,"created_by":166,"edited_by":null,"edited_at":null,"deleted_by":null,"deleted_at":null,"solvers_count":596,"test_suite_updated_at":"2012-02-20T20:05:18.000Z","rescore_all_solutions":false,"group_id":34,"created_at":"2012-02-20T20:05:18.000Z","updated_at":"2026-04-07T19:14:18.000Z","published_at":"2017-10-16T01:45:05.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"relationships\":[{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/document\",\"targetMode\":\"\",\"relationshipId\":\"rId1\",\"target\":\"/matlab/document.xml\"},{\"relationshipType\":\"http://schemas.mathworks.com/matlab/code/2013/relationships/output\",\"targetMode\":\"\",\"relationshipId\":\"rId2\",\"target\":\"/matlab/output.xml\"}],\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"relationship\":[],\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\\n\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003e\u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889 \u0026amp;#9889\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eThis is a very hypothetical situation between two individuals in a very dry atmosphere.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eHe came running in rubber boots when she was combing her hair.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eAround N number of electrons moved from one person to the other upon contact.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eWhat was the voltage between them before the contact?\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eAssume it is a simple RC type electrical circuit with equivalent capacitance of about 16 pico farads.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003ePlease assume that every electron carries about 160 zepto coulombs.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eFor more info on capacitors:\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:hyperlink w:docLocation=\\\"https://en.wikipedia.org/wiki/Capacitor\\\"\u003e\u003cw:r\u003e\u003cw:t\u003e\u0026lt;https://en.wikipedia.org/wiki/Capacitor\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:hyperlink\u003e\u003cw:r\u003e\u003cw:t\u003e\u0026gt;\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003c/w:body\u003e\u003c/w:document\u003e\"},{\"partUri\":\"/matlab/output.xml\",\"contentType\":\"text/xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\" standalone=\\\"no\\\" ?\u003e\u003cembeddedOutputs\u003e\u003cmetaData\u003e\u003cevaluationState\u003emanual\u003c/evaluationState\u003e\u003clayoutState\u003ecode\u003c/layoutState\u003e\u003coutputStatus\u003eready\u003c/outputStatus\u003e\u003c/metaData\u003e\u003coutputArray type=\\\"array\\\"/\u003e\u003cregionArray type=\\\"array\\\"/\u003e\u003c/embeddedOutputs\u003e\"}]}"},{"id":55405,"title":" Current through resistor","description":"Three resistors (R2, R3, R4) are connected in parallel as shown in the figure.  If this combination is connected in series with a battery V (volts) and a resistor R1 (ohms).  Find the current I (in amps) through the R4 resistor? Round to the nearest 100th.\r\n","description_html":"\u003cdiv style = \"text-align: start; line-height: 20.4333px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: rgb(0, 0, 0); white-space: normal; \"\u003e\u003cdiv style=\"block-size: 154.5px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 77.25px; transform-origin: 407px 77.25px; vertical-align: baseline; \"\u003e\u003cdiv style=\"block-size: 63px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 31.5px; text-align: left; transform-origin: 384px 31.5px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; \"\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 243px 8px; transform-origin: 243px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003eThree resistors (R2, R3, R4) are connected in parallel as shown in the figure.\u003c/span\u003e\u003c/span\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 4px 8px; transform-origin: 4px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003e  \u003c/span\u003e\u003c/span\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 129px 8px; transform-origin: 129px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003eIf this combination is connected in series with a battery V (volts) and a resistor R1 (ohms).\u003c/span\u003e\u003c/span\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 4px 8px; transform-origin: 4px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003e  \u003c/span\u003e\u003c/span\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 209.5px 8px; transform-origin: 209.5px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003eFind the current I (in amps) through the R4 resistor? Round to the nearest 100\u003c/span\u003e\u003c/span\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 6px 8px; transform-origin: 6px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003eth\u003c/span\u003e\u003c/span\u003e\u003cspan style=\"block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 2px 8px; transform-origin: 2px 8px; unicode-bidi: normal; \"\u003e\u003cspan style=\"\"\u003e.\u003c/span\u003e\u003c/span\u003e\u003c/div\u003e\u003cdiv style=\"block-size: 82.5px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; 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data-image-state=\"image-loaded\"\u003e\u003c/div\u003e\u003c/div\u003e\u003c/div\u003e","function_template":"function I = findCurrent(V,R1,R2,R3,R4) % Do not edit this line.\r\n  % insert your code here\r\nend % Do not edit this line.\r\n\r\n","test_suite":"%%\r\nassert(isequal(findCurrent(12,2,4,6,10),0.59));\r\n\r\n%%\r\nassert(isequal(findCurrent(20,0,8,8,4),5));\r\n\r\n%%\r\nassert(isequal(findCurrent(72,7,3,3,3),3));","published":true,"deleted":false,"likes_count":8,"comments_count":1,"created_by":542228,"edited_by":223089,"edited_at":"2022-10-06T07:24:28.000Z","deleted_by":null,"deleted_at":null,"solvers_count":554,"test_suite_updated_at":"2022-10-06T07:24:28.000Z","rescore_all_solutions":false,"group_id":1,"created_at":"2022-09-02T16:06:11.000Z","updated_at":"2026-04-07T17:11:50.000Z","published_at":"2022-09-02T16:06:11.000Z","restored_at":null,"restored_by":null,"spam":false,"simulink":false,"admin_reviewed":false,"description_opc":"{\"parts\":[{\"partUri\":\"/matlab/document.xml\",\"contentType\":\"application/vnd.mathworks.matlab.code.document+xml\",\"content\":\"\u003c?xml version=\\\"1.0\\\" encoding=\\\"UTF-8\\\"?\u003e\u003cw:document xmlns:w=\\\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\\\"\u003e\u003cw:body\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:r\u003e\u003cw:t\u003eThree resistors (R2, R3, R4) are connected in parallel as shown in the figure.\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e  \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003eIf this combination is connected in series with a battery V (volts) and a resistor R1 (ohms).\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e  \u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003eFind the current I (in amps) through the R4 resistor? Round to the nearest 100\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003eth\u003c/w:t\u003e\u003c/w:r\u003e\u003cw:r\u003e\u003cw:t\u003e.\u003c/w:t\u003e\u003c/w:r\u003e\u003c/w:p\u003e\u003cw:p\u003e\u003cw:pPr\u003e\u003cw:pStyle w:val=\\\"text\\\"/\u003e\u003cw:jc w:val=\\\"left\\\"/\u003e\u003c/w:pPr\u003e\u003cw:customXml w:element=\\\"image\\\"\u003e\u003cw:customXmlPr\u003e\u003cw:attr w:name=\\\"height\\\" w:val=\\\"77\\\"/\u003e\u003cw:attr w:name=\\\"width\\\" w:val=\\\"272\\\"/\u003e\u003cw:attr w:name=\\\"verticalAlign\\\" w:val=\\\"baseline\\\"/\u003e\u003cw:attr w:name=\\\"altText\\\" w:val=\\\"\\\"/\u003e\u003cw:attr w:name=\\\"relationshipId\\\" 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