Existence of displacement current – Rankers Physics
Topic: Electromagnetic Waves
Subtopic: Ampere's Law and Displacement Current

Existence of displacement current

Displacement current exists within the gap between the plates of capacitor when the electric field between its plates
Increases with time
Decreases with time
Remains constant
Both (1) and (2)

Solution:

Displacement current is given by \(I_d = \varepsilon_0 \frac{d\Phi_E}{dt}\). Hence, it exists whenever the electric field changes (increases or decreases) with time.

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