Keeping the potential difference constant, the resistance of a circuit is halved. By how much does the current change?

Academic Physics NCERT Class 10

According to ohm's law:

$\mathrm{I}=\frac{\mathrm{V}}{\mathrm{R}}$

If $\mathrm{V}$ is constant , then $\mathrm{I} \propto \frac{1}{\mathrm{R}}$

So, when $\mathrm{R}$ is halved, $I$ becomes double.

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Updated on: 10-Oct-2022

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