A torch bulb is connected to a battery and draws a current of

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

Problem

A torch bulb is connected to a

6.0\,\text{V}

battery and draws a current of

200\,\text{mA}

. Calculate the power rating of the bulb. (a)

12\,\text{W}

(b)

1.2\,\text{W}

(c)

0.12\,\text{W}

(d)

30\,\text{W}