A 48V battery has an internal resistance of 0.22 ohm and is connected to a variable resistance load through a line resistance of 1.28 ohms. For what value of load resistance will the load power be maximum and what will be the load current, load power and power loss under this condition
Maximum power in the external circuit, the battery will give when the load resistance is equal to the internal resistance of the current source. In our case "R=R_L+r=1.28+0.22=1.5\\ (\\Omega)"
The maximum value of useful power is reached in an external circuit at a current
Maximum power at this current
Power loss under this condition "P=384\\ (W)"