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Class X Sciences

[papers from previous years]

A lamp rated 100 W at 220 V is connected to the mains electric
supply. What current is drawn from the supply line if the voltage
is 220 V?


Given, Power (P)= 100W
Voltage (V)= 220V
We know, P=VI, where I is the current
Therefore, I=P/V
I=0.45 A
0 0 0
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