A charge of #35 C# passes through a circuit every #5 s#. If the circuit can generate #98 W# of power, what is the circuit's resistance?

1 Answer
Shwetank Mauria
Dec 29, 2016

The circuit's resistance is #2# ohms.

Explanation:

As a charge of #35C# passes through a circuit every #5s#

the current is #35/5=7# amperes.

Power of a resistance #R# through which a current of #I# amperes is passing is #I^2xxR# watts.

Hence #7^2xxR=98#

and #I=98/49=2# ohms.

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