Question

Which one of the following graphs represents the variation of electric field with distance $r$ from the center of a charged spherical conductor of radius $R$?

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

Electric field due to a hollow spherical conductor is governed by the following equation $E=0$ for $r< R \ldots$ (i) and $E=\frac{Q}{4 \pi \varepsilon_{0} r^{2}}$ for $r \geq R$ ie, inside the conductor field will be zero and outside the conductor field will vary according to $E \propto \frac{1}{r^{2}}$