A torch bulb is rated at 3v and 600ma . calculate its power ,resistance,energy consumed if it lighted for 4hrs
Answers
Answered by
4
P=V*I
So putting values we get P=1.8
R=V/I=5
and P=E/t. So rearranging and substituting we get , E=7.2.I think it helped. If it is wrong ,I am Sorry
So putting values we get P=1.8
R=V/I=5
and P=E/t. So rearranging and substituting we get , E=7.2.I think it helped. If it is wrong ,I am Sorry
Answered by
8
V=3V
I=0.6A
P=VI =1.8 W
R=V/I = 5 ohm
Energy consumed = Power×time = 1.8 x 4 = 7.2 Wh (watt-hour)
I=0.6A
P=VI =1.8 W
R=V/I = 5 ohm
Energy consumed = Power×time = 1.8 x 4 = 7.2 Wh (watt-hour)
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