A bulb is rated 100 W, 220 V. Its resistance is

A. 2.2 Ω

B. 484 Ω

C. 22000 Ω

D. 0.45 Ω

Doubtly AI Asked 24 Oct 2026 AI-verified · Oct 2026 ssc 10th Save WhatsApp Report

1 answer

Best answer

Answer: B. 484 Ω

\(R = \frac{V^2}{P} = \frac{220^2}{100} = \frac{48400}{100} = 484\) Ω.

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

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