Question

Q.157 An electron continues to move in a straight line while passing through magnetic field.
Choose the correct statement: Fe(vasino
emag A) It is never possible
BLIt is possible if B is perpendicular to the direction of the motion of the electron
It is possible if B is parallel to the direction of motion of the electron
D) It is possible if B is at 45° to the direction of motion of the electron
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Answer 1

Answer:

a

Explanation:

When the particle is released from rest, it starts to move along the fields due to application of electric field.

The magnetic force acting on a moving charged particle is given by

F

=q(

v

×

B

)

Since velocity and magnetic fields are parallel, no magnetic force acts on the particle, hence it continues to move in a straight line along with constant acceleration.