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The mano energetic beams of electrons mo...

The mano energetic beams of electrons moving along `+y` direction enter a region of uniform electric and magnetic fields. If the beam goes straight through these simultaneously then field `B` and `E` are directed respectively along.

A

`-y` axis and `-z` axis

B

`+z` axis and `-x` axis

C

`+x` axis and `-x` axis

D

`-x` axis and ``-y` axis

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