Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical PowerEasy2 minPYQ_2020
PhysicsEasysingle choice

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

Options:

Answer:
C
Solution:

Resistance of full coil = R

Resistance of each half piece = R/2

∴ H 2 H 1 = V 2 t R / 2 × R V 2 t = 2 1

∴ H 2 = 2 H 1

Heat generated will now be doubled.

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Electrical Power
⏱ 2mℹ️ Source: PYQ_2020

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