If a chraged particle at rest experiences no electromagnetic force,
(i) the electric field must be zero
(ii) the magnetic field must be zero
(iii) the electric field may or may not be zero
(iv) the magnetic field may or may not be zero

Options

A. (i), (ii)
B. (ii), (iv)
C. (ii), (iii)
D. (i), (iv)

Answer

D

Explanation

Since particle is at rest i.e. `v = 0`, hence `F_(m) = 0`
If electric force is zero, for this `E = 0`