Question

give condition for which force experienced by the charged particle due to magnetic field is zero.

Answer 1

Answer:

F=qVB sine theta

or F=q(V×B)

if sin theta will be 0 then the magnetic force will also be 0

now sin0=0

here sin is the angle between velocity and magnetic field

so the condition is when the velocity of the charge is along the direction of magnetic field then the force will be 0..