Question

In a certain arrangement a proton does not get deflected while passing through a magnetic field region. under what condition is it possible

Answer 1

For a charge particle, the force is given as:

               ->    ->    ->

                F = qv * B

 

where

 

F is the force and a vector quantity

q is the charge and a scalar quantity

v is the velocity of the particle and a vector quantity

B is the magnetic field and a vector quantity

 

When the force is anti-parallel or parallel, the cross product is zero. There is no force on the proton if it is moving either the opposite direction or the direction of the field. Therefore, there is no deflection when it passes through a magnetic field in this arrangement.