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A charged paricle goes undeflected in a ...

A charged paricle goes undeflected in a region containing electric and magnetic field. It is possible that

A

`vecE||vecB, vecv||vecE`

B

`vecE` is not parallel to `vecB`

C

`vecv||vecB` but `vecE` is not parallel to `vecB`

D

`vecE||vecB` but `vecv` is not parallel to `vecE`

Text Solution

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The correct Answer is:
A
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