Electrodynamics — CSIR Net PYQ (Question 3)

A Electrodynamics previous-year question (PYQ) from Electromagnetism (CSIR Net). Read the question, check the correct answer, then practise the full topic.

Question 3 of 14 · 5.0 marks

A parallel plate capacitor is formed by two circular conducting plates of radius

a

separated by a distance

d

, where

d ≪ a

. It is being slowly charged by a current that is nearly constant. At an instant when the current is

I

, the magnetic induction between the plates at a distance

a /2

from the centre of the plate, is

1 $\frac{μ _{0} I}{π a}$
2 $\frac{μ _{0} I}{2 π a}$
3 $\frac{μ _{0} I}{a}$
4 $\frac{μ _{0} I}{4 π a}$

Correct answer: Option 4

← Previous Next →

Practise all 14 Electrodynamics questions with instant feedback.

Practise this topic →

About this question

This Electrodynamics PYQ is part of the Electromagnetism section of CSIR Net. Browse more Electrodynamics questions or join the PhysicsByAaryan live batch for full conceptual coverage.