Physics Electromagnetic Induction ETEA 2022
PMDC Verified Question 47 of 69
An ideal AC generator has equal input and output, its heat dissipation will be:
A
Of some finite value
B
Zero
C
Maximum
D
Very much small
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Zero
Concept:

An "ideal" machine is a theoretical construct that operates with 100% efficiency.

Solution:

  • By definition, 100% efficiency means Input Power = Output Power.


  • If all mechanical input is perfectly converted to electrical output, there is absolutely no energy left over to be converted into heat.


  • Therefore, heat dissipation in an ideal generator is exactly Zero.


Why other options are incorrect:

Finite, small, or maximum heat dissipation implies energy is being lost (efficiency < 100%), which contradicts the premise of an "ideal" generator.

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