|
A source with emf e and internal resistance r is connected to an external circuit.
(a) Show that the power output of the source is maximum when the current in the circuit is one-half the short circuit current of the source.
(b) If the external circuit consists of a resistance R, show that the power output is maximum when R = r and that the maximum power is E2/4r. |
| New search. (Also 5349 free access solutions) |