Q. Which of the following graphs shows the variation of electric field $E$ due to a hollow spherical conductor of radius $R$ as a function of distance from the centre of the sphere
A)
B)
C)
D)
Explanation
(a) Electric field due to a hollow spherical conductor is governed by following equation
$E = 0,$ for $r < R$ …(i)
and $E = \frac{Q}{4\pi\varepsilon_{0}r^{2}}$ for $r \geq R$ …(ii)
$i.e.$ inside the conductor field will be zero and outside the conductor will vary according to $E \propto \frac{1}{r^{2}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.