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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, 100 watt

B

100 watt, 50 watt

C

200 watt, 150 watt

D

50 watt, 200 watt

Text Solution

Verified by Experts

The correct Answer is:
D
If rated voltage =supply voltage then use `1/P=1/P_1+1/P_2` (series connection ) & `P=P_1+P_2` (parallel connection )
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