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Question: Answered & Verified by Expert
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
PhysicsCurrent ElectricityNEET
Options:
  • A One fourth
  • B Halved
  • C Doubled
  • D Four times
Solution:
1019 Upvotes Verified Answer
The correct answer is: Doubled
The resistance of full coil = R

The resistance of each half piece = R2

    H2H1=V2tR/2×RV2t=21

     H2=2H1

The heat generated will now be doubled.

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