A proton (or charged particle) moving with velocity `v` is acted upon by electric field `E` and magnetic field `B`. The proton will move underflected if

A charged particle moving with velocity vis subjected to electric field E and magnetic field B. The particle will go undeflected if

A charged particle moving with velocity vis subjected to electric field E and magnetic field B. The particle will go undeflected if

Write the expression for the force vecF acting on a particle of charge q moving with a velocity vecv in the prensnece of both electric field vecE and magnetic field vecB . Obtain the condition under which the particle moves undeflected through the fields.

A particle of charge q is moving with velocity v in the presence of crossed electric field E and magnetic field B as shown. Write the condition under which the particle will continue moving along x-axis. How would the trajectory of the particle be affected if the electric field is switched off?

A charged particle moves with velocity v in a uniform magnetic field vecB . The magnetic force experienced by the particle is