An ideal battery has an emf of 12 V.If it is connected to a circuit and creates a current of 4.0 A, what is the power?
A)0.3 W
B)3.0 W
C)36 W
D)48 W
E)cannot tell without knowing the resistance of the circuit

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The Answer of An ideal battery has an emf of 12 V.If it is connected to a circuit and creates a current of 4.0 A, what is the power?
A)0.3 W
B)3.0 W
C)36 W
D)48 W
E)cannot tell without knowing the resistance of the circuit

An Ideal Battery Has an Emf of 12 V