Question

The maximum power that a 12 v d.c. source with an internal resistance of 2 can supply to a resistive load is

Answer 1

18W

Explanation:

Maximum power transfer theorem says that the power transfer is maximum when the resistance of load is equal to that of battery. (here 2 ohm)

Current = Potential/total resistance

=12/(2+2)

=3

power=current square * load resistance

=3*3 *2=18W

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