A heater coil is cut into two equal parts and only one part is now used in the heater.

+1 vote
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asked Mar 24, 2018 in Physics by paayal (26,720 points) 4 6 53

A heater coil is cut into two equal parts and only one part is now used in the heater. The heat generated will now be

(a) one fourth 

(b) halved

(c) doubled 

(d) four times

1 Answer

0 votes
answered Mar 24, 2018 by sanjaydas (61,430 points) 5 7 7
selected Mar 26, 2018 by Vikash Kumar
 
Best answer

(c) : Resistance of full coil = R
Resistance of each half piece = R/2

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