200V wala question
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Electric Bulb:
P = 100 W { given }
V = 200 V { given }
We know,
P = V × i
=> 100 = 200 × i
=> i = 100/200
=> i = 0.5 A
Also,
V = iR
=> 200 = 0.5 × R
=> R = 2000/5
=> R = 400 Ohm
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