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An electron is travelling along the x-di...

An electron is travelling along the x-direction. It encounters magnetic field in the y-direction. Its subsequent motion will be

A

Straight line along the x-direction

B

A circle in the xz-plane

C

A circle in the yz-plane

D

A circle in the xy-plane

Text Solution

Verified by Experts

The correct Answer is:
B
`v to (hati) , B to (hatj)`
`vecF = q (vecv xx vecB) implies (-hatk) = -(hati xx hatj)`
A circle is xz-plane
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