Physics Electromagnetic Induction UHS 2022
PMDC Verified Question 41 of 69
In transformer, there is no ____ connection between the two coils but they are ____ linked?
A
Magnetic, electrically
B
Electrical, magnetically
C
Magnetic, magnetically
D
Electrical, optically
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Electrical, magnetically
Concept:

Transformers transfer energy between circuits without direct wiring between the primary and secondary sides.

Solution:

  • The primary and secondary coils are insulated from each other, meaning there is no electrical connection.


  • Energy is transferred via a shared magnetic core where changing flux links the two coils, meaning they are magnetically linked.


Why other options are incorrect:

Coils are strictly electrically isolated to prevent direct current flow. They are not optically linked (which would be an optoisolator, not a standard transformer).

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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