Question

an electrical bulb is rated 60w 220v.if electric current passed through it for 2 hours,find the amount of heat produced .

Answer 1

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P=VI

60=220×I

I=60/220

I=0.273A

V=IR

220=0.273×R

R=220/0.273

R=805.86ohms

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Answer 2

ram ram ....

P = 60

V = 220

I = ?

P = VI

60 = 220× I

I = 60/220 = 3/11

NOW,

V = RI

R = 220 × 11/3 = 805.86

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