Skip to content
PhysicsNEET 2024Displacement current and Maxwell's equations (qualitative)

Electromagnetic Waves

A parallel plate capacitor is charged by connecting it to a battery through a resistor. If II is the current in the circuit, then in the gap between the plates:

  1. A.Displacement current of magnitude equal to II flows in the same direction as II✓
  2. B.Displacement current of magnitude equal to II flows in a direction opposite to that of II
  3. C.Displacement current of magnitude greater than II flows but can be in any direction
  4. D.There is no current

Solution

Between the plates the changing electric field constitutes a displacement current Id=ε0dΦEdtI_d = \varepsilon_0 \frac{d\Phi_E}{dt}, equal in magnitude to the conduction current and in the same direction, so the current is continuous around the circuit.

Save for spaced revision (free account)

More from this chapter in past papers

From Physics › Electromagnetic Waves › Displacement current and Maxwell's equations (qualitative) — lectures, notes and every past question on it.

Last revised . Found a mistake? Tell us — corrections are the fastest thing we act on.

ShareWhatsAppTelegram