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Electric field and magnetic field n a re...

Electric field and magnetic field `n` a region of space is given by `E=E_0hatj` and `B=B_0hatj`. A particle of specific charge alpha is released from origin with velocity `v=v_0hati`. Then path of particle

A

is a circle

B

is a helix with uniform pitch

C

is a helix with non uniform pitch

D

is cycloid

Text Solution

Verified by Experts

The correct Answer is:
C
Electric field (acting along `hatj` direction) will change the velocity component which is parallel to `B=B_0hatj` and `v=v_0hatj` will rotate the particle in a circle. Hence, the net path is helical with variable pitch.
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