CBSE BOARD X, asked by birendralabeti5, 2 months ago

A lamp rated 100 w -220v is connected to the main electric supply what current is drawn from the supply line if the voltage is 220v

Answers

Answered by vsramcharan22

Answer:

Current in lamp is power/voltage=100/22=4.545Amp

Now as the voltage is becoming 22/220=1/10 of the supply voltage so current in bulb should be 10 times to that of supply line i.e., current in supply line=4.545/10=0.4545 Amp

Explanation:

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