A lampof100 W work at 220 volt calculate its resistance and currentcapacity
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Electric power = voltage x current,
P = VI
Given P = 110 W and V = 220 V
∴ Current in the circuit I = P/V = 110 W/220V = 0.5 A
Resistance of the heating element = V/I = 220 V/0.5 A = 440 Ω.
P = VI
Given P = 110 W and V = 220 V
∴ Current in the circuit I = P/V = 110 W/220V = 0.5 A
Resistance of the heating element = V/I = 220 V/0.5 A = 440 Ω.
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