An electric lamp of resistance is connected to the (rms) mains supply

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

Problem

An electric lamp of resistance 529 Ω529\,\Omega is connected to the 230 V230\,\text{V} (rms) mains supply. What is the power consumed by the lamp? (a) 200 W200\,\text{W} (b) 100 W100\,\text{W} (c) 50 W50\,\text{W} (d) 90 W90\,\text{W}

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