Two bulbs are rated 40 W – 110 V and 40 W – 220 V

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

Problem

Two bulbs are rated 40 W – 110 V and 40 W – 220 V. Neglecting temperature effects, which bulb has the higher resistance? (a)

40\,\text{W}-110\,\text{V}\ \text{bulb}

(b)

40\,\text{W}-220\,\text{V}\ \text{bulb}