An+electrical+lamp+consumes+100+w+of+power+.if+the+supply+voltage+220v+.energy+consumption+in+30+minutes
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we know that --
P=VI
P=100w ( given)
so, I = 100/220
we know that --
electrical energy= v×I×t
= 220×100/220×1/2(hour)
= 50 joules ans.
P=VI
P=100w ( given)
so, I = 100/220
we know that --
electrical energy= v×I×t
= 220×100/220×1/2(hour)
= 50 joules ans.
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