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Induced Electric Field - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

Quick Facts

  • Induced Electric field is considered one the most difficult concept.

  • 19 Questions around this concept.

Solve by difficulty

A small circular loop of wire of radius a is located at the center of a much larger circular wire loop of radius b.  The two loops are in the same plane. The outer loop of radius b carries an alternating current I=Io cos (ωt).  The emf induced in the smaller inner loop is nearly :

 

Concepts Covered - 1

Induced Electric field

 Whenever a magnetic field is varying with time, an induced electric field  E_{in} is produced in any closed path, whether in the matter
or in empty space. This Induced electric field is directly proportional to induced emf as \varepsilon = \oint \vec{E_{in} }\cdot \vec{dl}.

And this E_{in}  is given as 

\varepsilon = \oint \vec{E_{in} }\cdot \vec{dl}= \frac{-d\phi }{dt}

This is known as an integral form of Faraday’s laws of EMI.

Properties of Induced electric field-

  • The induced electric field is different from the electrostatic field. As it is non-conservative and non-electrostatic in nature.  
  • Its field lines are concentric circular closed curves.
  • This field is not created by source charges.
  • Its direction is along the tangent to its field lines.

 

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Induced Electric field

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