COMEDK Exam 2022 Solved Paper

The electric field intensity at a point lying outside the sphere (non-conducting) is
E=

1

4πε0

.

q

r2

⇒ E∝

1

r2

‌‌‌⋅⋅⋅⋅⋅⋅⋅(i)
The electric field intensity at the sphere (r=R),
E=

1

4πε0

q

R2

⇒ E=∝

1

R2

where, R being the radius of sphere.
The electric field intensity inside the sphere is
E=

1

4πε0

.

q

R3

⇒ E∝r
At the centre of sphere, E=0
Hence, option (c) is correct representation.