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Question

Calculate the current through a lamp of 25w operating at 220v.
25A
2A
0.114A
6A

A

2A

B

25A

C

6A

D

0.114A

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Solution

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Given : $P = 25$ W $V = 220$ volts
$∴$ Current through the lamp $I = \frac{P}{V} = \frac{25}{220} = 0.114$ A

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