Question

The electric field at a distance 2 cm from the centre of a hollow spherical conducting shell of radius 4 cm having a charge of $2\times {10}^{-3}$ C on its surface is :

• A. $1.1\times {10}^{10}V/m$
• B. $4.5\times {10}^{-10}V/m$
• C. $4.5\times {10}^{10}V/m$
• D. zero

Answer 1

Answer: (A), (D)

The correct options are
A $1.1\times {10}^{10}V/m$
D zero

Here, $r=2cm$ inside the hollow sphere of radius $R=4cm$.
Since, the charge inside a hollow sphere is zero. So the field inside hollow sphere will be zero.