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Physics for IGCSE & O level - Electricity (Section 6 - No. 8)

If an appliance is rated at 230V and 1000W, what is the current it draws?
0.435 A
4.35 A
230 A
1000 A

解释

Using P = VI, I = P/V = 1000W / 230V ≈ 4.35A

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