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Two electric bulbs, one of 200 V, 40W and other of 200 V, 100W are connected in a domestic circuit. Then
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- they have equal resistance
- the resistance of 40W bulb is more than 100W bulb
- the resistance of 100W bulb is more than 40 W bulb
- they have equal current through them
Correct Option: B
R1 = | V² | = | 200 x 200 | = 1000Ω |
P1 | 40 |
R2 = | V² | = | 200 x 200 | = 400Ω |
P2 | 100 |
∴ R1 (for 40W) > R2 (for 100 W)