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An electric bulb rated 220 V, 100 W is c...

An electric bulb rated 220 V, 100 W is connected in series with another bulb rated 220 V, 60 W. If the voltage across the combination is 220 V, the power consumed by the 100 W bulb will be about-

A

25 W

B

14 W

C

60 W

D

100 W

Text Solution

Verified by Experts

The correct Answer is:
B
`R_(1) = (220)^(2)/100 = 484 Omega, R_(2) = (220)^(2)/60 = 48400/60 Omega`
Current (i) `1=220/(484 (4840)/6) = 15/88` amp
`P_(1) = (15/88)^(2) xx 484 = 14.06 W = 14 W`
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