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QAIPMT-2003-Ph-2730: NEET 2003 Physics - Class 12 AIPMT-2003-Ph-2730 Solution: Two 220 volt, 100 watt bulbs are connected first in series and…
Two 220 volt, 100 watt bulbs are connected first in series and then in parallel. Each time the combination is connected to a 220 volt a.c. supply line. The power drawn by the combination in each case respectively will be
Multiple Choice Options
- A 50 watt, 100 watt
- B 100 watt, 50 watt
- C 200 watt, 150 watt
- D 50 watt, 200 watt
Step-by-Step Verified Solution
R = V 2 P = 220 _ 220 100 = 484 �
In series, R eq = 484 + 484 = 968 �
_ P e q = V 2 968 = 220 _ 220 968 = 50 w a t t
In parallel, R e q = 242 �
_ P e q = V 2 242 = 220 _ 220 242 = 200 w a t t