A 40 watt bulb is working on 220 volts.its resistence is?
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Answered by
3
P = v²/R
40 = (220)²/R
40 = 220 × 220 /R
R = 110 × 11
R = 1210ohm
40 = (220)²/R
40 = 220 × 220 /R
R = 110 × 11
R = 1210ohm
Answered by
1
here is ur answer dear......
P=V^2 /R.....THEN PUTTING VALUE HERE.....
40=(220×220)/R
R=1210 ohm
P=V^2 /R.....THEN PUTTING VALUE HERE.....
40=(220×220)/R
R=1210 ohm
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