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A LAMP RATED 100W AT 200V IS CONNECTED TO THE MAINS ELECTRIC SUPPLY 1.WHAT AMOUNT OF CURRENT IS DRAWN FROM THE SUPPLY LINE IF THE VOLTAGE IS 220V? 2.WHAT IS IT’S RESISTANCE

A LAMP RATED 100W AT 200V IS CONNECTED TO THE MAINS ELECTRIC SUPPLY
1.WHAT AMOUNT OF CURRENT IS DRAWN FROM THE SUPPLY LINE IF THE VOLTAGE IS 220V?
2.WHAT IS IT’S RESISTANCE

Grade:10

1 Answers

IHate Ppts
101 Points
6 years ago
Voltage x Current=Power220 x I= 100I=0.454V=IR220=0.454 x RR=484.8 OhmsHere, the voltage is assumed to be constant.

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