A wire carries a current of when a potential difference of is applied

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

A wire carries a current of

3.0\times10^{-3}\,\text{A}

when a potential difference of

12\,\text{V}

is applied. Calculate its resistance. (a)

4\,\Omega

(b)

4.0\times10^{3}\,\Omega

(c)

4.0\times10^{4}\,\Omega

(d)

400\,\Omega

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