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Q.

An electron is moving along the positive x-axis. If the uniform magnetic field is applied parallel to the negative z-axis. Then
(A) The electron will experience magnetic force along positive y-axis
(B) The electron will experience magnetic force along negative y-axis.
(C) The electron will not experience any force in magnetic field
(D) The electron will continue to move along the positive x-axis
(E) The electron will move along circular path in magnetic field
Choose the correct answer from the options given below: 

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a

B and E only

b

B and D only

c

C and D only

d

A and E only

answer is A.

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Detailed Solution

The magnetic force will be along the negative y-axis.
Magnetic force and velocity are perpendicular to each other so, the path of electron is a circle.

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An electron is moving along the positive x-axis. If the uniform magnetic field is applied parallel to the negative z-axis. Then(A) The electron will experience magnetic force along positive y-axis(B) The electron will experience magnetic force along negative y-axis.(C) The electron will not experience any force in magnetic field(D) The electron will continue to move along the positive x-axis(E) The electron will move along circular path in magnetic fieldChoose the correct answer from the options given below: