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Electric Power

The wattage o...

Question

The wattage of an electric heater which draws 5 A current when connected to a 220 V supply is _____________.

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Solution

Given:
Current drawn by the heater $I = 5 A$
Voltage supplied to the heater $V = 220 V$

Wattage of the heater, i.e. its power $P = V I$
$= 220 \times 5$
$= 1100 W$

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