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A charge particle travels along a straig...

A charge particle travels along a straight line with a speed v in region where both electric field E and magnetic field b are present.It follows that

A

`|E|=|B|` and the two field are perpendicular

B

`|E|=v|B|` and the two field are perpendicular

C

`|B|=v|E|` and the two field are parallel

D

`|B|=v|E|` and the two fields are perpendicular

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The correct Answer is:
B
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