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A proton beam passes without deviation t...

A proton beam passes without deviation through a region of space, where there are uniform tranverse mutully perpendicular electric and magnetic field with E = 220 kV/m and B = 50 mT.Then the beam strikes a grounded target.Find the force imparted by the beam on the target, if beam current is equal to i = 0.80 mA

A

`(mEI)/(eB)`

B

`(mIE)/e`

C

`(mEI)/B`

D

`(eIm)/B`

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The correct Answer is:
A
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