Keeping the potential difference constant, the resistance of a circuit is doubled. The current will become:(a) double(b) half(c) one-fourth(d) four limes

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 doubled, $I$ becomes half.

Answer is (b)

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Updated on: 10-Oct-2022

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