Rahul bought 'N' identical electrical bulbs each rated as 10W, 220V. He connected them in parallel across 220V supply line. He found that total current drawn is 6A. Calculate the number of bulbs 'N' connected by Rahul in a parallel circuit??
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Answer:
28
Explanation:
current drawn by each bulb
I=sqrt(10/220)=0.213
number of bulbs
N=6/0.213 which is approximately 28
thus N=28
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