Question

(e) An electric bulb is rated 220 V and 100 W. When
It is operated on 110 V, what will be the power consumed?
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Answer 1

Explanation:

by Solving p2 is 25...... here ia ur ansewr

Answer 2

Answer:

25 W

Explanation:

Given that V = 220V, P = 100W

P = V^2/R

R = 220^2/100

R = 484 ohm

Power consumed at 110V = V^2/R

P = 110^2/484

P = 25 W