Case : Read the passage and answer the question(s).

A force on a charge in electric and magnetic field is given as :

F = qE + qvB

where, 

E : Electric field

B : Magnetic field

q : Charge

v : Velocity of the charge

Based on this information, answer the question that follows.

What happens if the electric field is turned off and the charge is at rest?

Force acting is zero.

As E, B = 0; F = 0.