WBBSEClass XPhysical ScienceCurrent Electricity01 Mark2025 Easy

QQuestion

State the resistance of a 220 V – 100 W bulb.

Exam-ready answer 01 Mark

Answer

Voltage (V) = 220 V

Power (P) = 100 W

R = \frac{220^2}{100}

R = \frac{48400}{100} = 484 Ω

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