Physics Electromagnetic Induction NUMS 2023
PMDC Verified Question 35 of 69
A current generator is a device that converts:
A
Mechanical energy into electrical energy
B
Chemical energy into mechanical energy
C
Sound energy into mechanical energy
D
Electrical energy into mechanical energy
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Mechanical energy into electrical energy
Concept:

An electrical generator operates on the principle of motional electromagnetic induction.

Solution:

  • By physically rotating a coil within a magnetic field (using turbines driven by water, steam, or wind), a generator turns mechanical energy into electrical energy.


Why other options are incorrect:

Option D describes an electric motor. Option B describes aspects of combustion engines or biological muscles. Option C describes a microphone.

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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