Maximum Power Transfer in passive electric circuit

A simple resistive network is considered where testing of maximum level of electrical power is carried out by varying load resistance.

A simple resistive network is considered where testing of maximum level of electrical power is carried out by varying load resistance. The circuit is operated by a constant dc voltage of 100 Volt. The internal circuit consists of three resistances all having equal values of 2 ohm. The load resistance is varied from 1 to 5 ohm. The maximum power transfer is occured from source to load around 3 ohm and corresponding power value is obtained near about 210 watt.