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Electricity and Magnetism

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Alternating Power in a Resistor

EANDM-R7XDJB

A $5\Omega$ resistor is in a circuit connected to an alternating voltage source. The average power consumed by the resistor is $10\,W$.

What is the peak current that flows through the resistor?

A

$I_{peak}=\cfrac{2}{\sqrt{2}}\,A$

B

$I_{peak}=2 \sqrt{2}\,A$

C

$I_{peak}=0.5\,A$

D

$I_{peak}=2\,A$

E

$I_{peak}=\sqrt{2}\,A$