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One long conductor carries current I alo...

One long conductor carries current I along y-axis with charge density `lambda`. An electric field exists along z-axis. In what direction, a charged particle at point P, distance x apart from the wire (along x-axis), be projected with velocity v so that it moves undeflected?

A

Vertically upward

B

vertically downwards

C

horizontally right

D

horizontally left

Text Solution

Verified by Experts

The correct Answer is:
A
If the particle is projceted vertically upwards, the two forces may be equal and the particle may move undeviated.
.
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