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If voltage across a bulb rated 220 V – 1...

If voltage across a bulb rated 220 V – 100 W drops by 2.5% of its rated value, the percentage of the rated value by which the fractional power would decrease, is -

A

0.2

B

`2.5 %`

C

0.05

D

0.1

Text Solution

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The correct Answer is:
C
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