A potential difference of produces a current of in a resistor

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

Problem

A potential difference of

7.5\,\text{V}

produces a current of

0.25\,\text{A}

in a resistor. Calculate the resistance of the resistor. (a)

18.75\,\Omega

(b)

30\,\Omega

(c)

1.875\,\Omega

(d)

3\,\Omega

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