Physics Electromagnetic Induction SZABMU 2022
PMDC Verified Question 43 of 69
Transformer works on the principle of:
A
Lenz's law
B
Faraday's law
C
Mutual induction
D
Ampere's law
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Mutual induction
Concept:

A transformer consists of two coils in proximity, sharing a magnetic flux.

Solution:

  • When an alternating current flows in the primary coil, it generates a changing magnetic field.


  • This changing flux induces an alternating EMF in the secondary coil. This specific two-coil interaction is known as Mutual Induction.


Why other options are incorrect:

While Faraday's and Lenz's laws govern how induction works generally, "Mutual induction" is the specific technological principle classifying the interaction of two separate coils in a transformer.

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