CBSE BOARD X, asked by anshumanpanwar4305, 6 months ago

An electric bulb is rated (50 W, 220 V). If it is operated at 110 V, then power consumed by it

Answers

Answered by vinaytiwary001

1

Answer:

p=50w

v=220v

R=?

as we know that

R=Vsquare/p

R=220*220/50

R=4840/5

R=484

then given that

V=110v

R=484

P=?

P=Vsquare/R

P=110*110/484

P=25

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