Two identical lightbulbs are connected to a ideal battery

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

Problem

Two identical

3\,\Omega

lightbulbs are connected to a

9\,\text{V}

ideal battery. In Circuit 1 the bulbs are connected in series; in Circuit 2 the same two bulbs are connected in parallel. What is the ratio

\frac{P_{\text{parallel}}}{P_{\text{series}}}

of the power dissipated by a single bulb in the parallel circuit to that of a single bulb in the series circuit? (a)

\dfrac{1}{4}

(b)

1

(c)

4

(d)

2