an ideal battery has an emf of 12v. if it is connected to a circuit and...

Question

Question

an ideal battery has an emf of 12v. if it is connected to a circuit and creates a current of 4.0 A, what is the power? please explain.

Answer 1

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Answer #1

The power supplied by the battery is,

$$ \begin{aligned} P &=I V \\ &=(4.0 \mathrm{~A})(12 \mathrm{~V}) \\ &=\mathbf{4 8} \mathbf{~ W} \end{aligned} $$

Answer 2

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