A torch bulb works on a potential difference of and draws a current of

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

Problem

A torch bulb works on a potential difference of

3\,\text{V}

and draws a current of

0.2\,\text{A}

. Calculate the power of the bulb. (a)

6\,\text{W}

(b)

15\,\text{W}

(c)

0.6\,\text{W}

(d)

3\,\text{W}