PMDC Verified Question 39 of 69
Working principal of magnetic levitation train is according to?
A
Faraday law
B
Max planks law
C
Ohm law
D
Lenz law
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Faraday law
Concept:

Magnetic levitation (Maglev) trains utilize powerful electromagnets to lift and propel the train, eliminating rolling friction.

Solution:

  • The underlying principle governing the induction of opposing magnetic fields in the track coils is Faraday's Law of Electromagnetic Induction (though Lenz's Law dictates the specific repulsive direction).




Why other options are incorrect:

Max Planck's law relates to quantum energy. Ohm's law relates voltage, current, and resistance. (While Lenz's law gives the direction of levitation force, the source key marks A).

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