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Energy and Power

Q1: The power rating of a carbon-composition resistor that is to handle up to 1.2 W should be

A 2 W

B 1 W

C 5 W

D 0.5 W

ANS:A - 2 W

1.2W resistor rating b/w above 1W below 1.5W/2W.

1W resistor is will use instead of 1.2W resistor will heatup. So we can use a 2W resistor instead of 1.2W. Rating will high no problem for ckt but rating will less than operating value equipment will burn.



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