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Two 220 V,100 W bulbs are connected firs...

Two 220 V,100 W bulbs are connected first in series and then in parallel. Each time the combination is connected to a 220 V AC supply line. The power drawn by the combination in each case respectively will be :

A

50 watt, 200 watt

B

50 watt, 100 wat

C

100 watt, 50 watt

D

200 watt, 150 watt

Text Solution

Verified by Experts

The correct Answer is:
A
Power `prop (1)/( " Resistance")`
In series combination, resistance doubles. Hence, power will be halved. In parallel combination, resistance halves. Hence, power will be doubled.
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