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Physics · Electrical energy and power

PhysicsElectrical energy and powerJAMB

Find the resistance of a bulb rated 100 W, 220 V.

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Answer: C. 484 Ω

R = V²/P = 220²/100 = 48 400/100 = 484 Ω.

An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.

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