Displacement current in a capacitor – Rankers Physics
Topic: Electromagnetic Waves
Subtopic: Ampere's Law and Displacement Current

Displacement current in a capacitor

The potential difference between the plates of a parallel plate capacitor is changing at the rate of \(10^6\text{ V/s}\). If the capacitance is \(2\ \mu\text{F}\), the displacement current in the dielectric of the capacitor will be:
\(1\text{ A}\)
\(2\text{ A}\)
\(3\text{ A}\)
\(4\text{ A}\)

Solution:

Displacement current is given by \(I_d = C \frac{dV}{dt}\). Substituting \(C = 2 \times 10^{-6}\text{ F}\) and \(\frac{dV}{dt} = 10^6\text{ V/s}\), we find \(I_d = 2\text{ A}\).

Leave a Reply

Your email address will not be published. Required fields are marked *