A 60 W bulb is connected to a 230 V supply. What is the current through the bulb?

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Multiple Choice

A 60 W bulb is connected to a 230 V supply. What is the current through the bulb?

Explanation:
Power relates to current and voltage through P = V × I. For a 60 W bulb on a 230 V supply, the current is I = P / V = 60 / 230 ≈ 0.2609 A, so about 0.26 A (0.261 A to three sig figs). If you check the other numbers, they would imply powers far from 60 W: 2.60 A would mean roughly 598 W, 0.026 A would be about 6 W, and 6.00 A would be around 1.38 kW. The calculation shows the current is about 0.26 A.

Power relates to current and voltage through P = V × I. For a 60 W bulb on a 230 V supply, the current is I = P / V = 60 / 230 ≈ 0.2609 A, so about 0.26 A (0.261 A to three sig figs). If you check the other numbers, they would imply powers far from 60 W: 2.60 A would mean roughly 598 W, 0.026 A would be about 6 W, and 6.00 A would be around 1.38 kW. The calculation shows the current is about 0.26 A.

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