What is the current required to light a 60 W incandescent bulb in a do

What is the current required to light a 60 W incandescent bulb in a domestic supply of 240 V ?

[amp_mcq option1=”0·5 A” option2=”0·25 A” option3=”1·0 A” option4=”5·0 A” correct=”option2″]

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UPSC NDA-1 – 2022

The current required is 0.25 A.

The power ($P$) consumed by an electrical device is related to the voltage ($V$) across it and the current ($I$) flowing through it by the formula $P = V \times I$.

Given Power $P = 60$ W and Voltage $V = 240$ V. Using the formula $P = V \times I$, we can find the current $I$: $I = \frac{P}{V} = \frac{60 \text{ W}}{240 \text{ V}} = \frac{60}{240} \text{ A} = \frac{1}{4} \text{ A} = 0.25 \text{ A}$.

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