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If a charged particle goes unaccelerated...

If a charged particle goes unaccelerated in a region containing electric and magnetic fields,

A

`vecE` must be perpendicular to `vecB`

B

`vecv` must be perpendicular to `vecE`

C

`vecv` must be perpendicular to `vecB`

D

E must be equal to vB

Text Solution

Verified by Experts

The correct Answer is:
(a,b)
If a charged particle goes unaccelerated in a region containing
electric and magnetic fields,
`|qvecE|=|qvecvxxvecB| implies |vecE|=|vecvxxvecB| implies E = vB sin theta`
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