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 force is zero?

The charge continues with same velocity

Force can be zero. This means that acceleration is zero which means that the velocity remains the constant.