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21/07/2021 8:08 pm
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An electric bulb is connected to a 220 V power supply line. If the bulb draws a current of 0.5 A, calculate the power of the bulb.
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21/07/2021 8:10 pm
V = 220 V, I = 0.5 amp, P = ?
We know that
P = VI = 220 x 0.5
P = 110 watt.