Physics Electromagnetic Induction SZABMU 2023
PMDC Verified Question 28 of 69
Transformer works on the principle of:
A
Half wave rectification
B
Self-induction
C
Mutual induction
D
Full wave rectification
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 transfers electrical energy between two isolated circuits via a magnetic core.

Solution:

  • Because it relies on the magnetic flux of the primary coil inducing a voltage across the turns of the secondary coil, the defining physical principle is Mutual induction.


Why other options are incorrect:

Rectification (A and D) converts AC to DC, requiring diodes. Self-induction (B) governs single-coil components like inductors/chokes.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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