First slide

Electric field

Question

A dielectric in the form of a sphere is introduced into a homogeneous electric field. A, B, and C are three points as shown in figure. Then

Moderate

A

intensity at A increases while that at B and C decreases
B

intensity at A and .B decreases, whereas intensity at C increases
C

intensity at A and C increases and that at B decreases
D

intensity at A, B, and C decreases

Solution

The dielectric gets polarized as shown. Induced charges will also contribute in electric field.
So, intensity at point s A and C will increase and at B intensity will decrease.

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