A portable speaker draws a steady current of from a battery

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

Problem

A portable speaker draws a steady current of

25\,\text{mA}

from a

9.0\,\text{V}

battery. What is the electric power delivered to the speaker? (a)

2.25\,\text{W}

(b)

225\,\text{W}

(c)

0.225\,\text{W}

(d)

0.0225\,\text{W}