electric lamp is rated at 220 v 100 watt calculate the current drawn by the lamp resistance of the land number of electrons that flow through the lamp in one second
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given,
V=220volt
P=100watt.
P=VI
I=p/v
I=100/220
I=0.45A
since P=Isqure *R
R=p/I square
R=100/0.2025
R=493.82
number of electrons =6.25*10 to the power 18.
V=220volt
P=100watt.
P=VI
I=p/v
I=100/220
I=0.45A
since P=Isqure *R
R=p/I square
R=100/0.2025
R=493.82
number of electrons =6.25*10 to the power 18.
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