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Question 20193
JEE Physics · Medium

Electromagnetic Waves and Wave Optics: Displacement Current MCQ

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Displacement CurrentMediumQuestion 20193

Question

The displacement current between the plates of a charging capacitor produces:
  1. A
    No magnetic field
  2. B
    A magnetic field that encircles the region between the plates
    Correct
  3. C
    An electric field only
  4. D
    Sound waves

Correct answer

A magnetic field that encircles the region between the plates

Explanation

Maxwell's displacement current id = ε₀(dΦE/dt) acts like a real current and produces a magnetic field exactly as conduction current does. This ensures Ampere's law is consistent and is the basis for EM wave propagation.

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