Physics, asked by ishitap08, 11 months ago

in question number 3 here.. why can't we use the equation P=VI and find the current first?... please help fast​

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Answered by TotalNerd
1

We cannot use P=VI because I is not a constant factor. R is constant. I changes itself according to V to make R remain constant. The resistance of a conductor remains constant.

Therefore,

100=220×220/R

R=484

P= 110×110/484

P= 25W

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