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A uniform magnetic field exists in regio...

A uniform magnetic field exists in region which forms an equilateral triangle of side a . The magnetic field is perpendicular to the plane of the triangle . A charge q enters into this magnetic field perpendicularly with speed v along perpendicular bisector of one side and comes out along the perpendicular bisector of other side . The magnetic induction in the triangle is

A

`(mv)/(qa)`

B

`(2mv)/(qa)`

C

`(mv)/(2qa)`

D

`(mv)/(4qa)`

Text Solution

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The correct Answer is:
B
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