Question

What is meant by displacement current?

What is displacement current (i_d)?

Answer 1

Displacement current is the current that arises in regions where the electric field and electric flux are time-varying.

Answer 2

Maxwell proposed displacement current to explain the continuity of current in circuits with capacitors. It occurs as a result of a time-varying electric field, even in the absence of physical charge flow.

i_d = `epsilon_0 (d phi_E)/dt`

Where:

ε₀ = permittivity of free space

Φ_E = electric flux