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A proton of energy 8 MeV enters a unifor...

A proton of energy 8 MeV enters a uniform magnetic field of 5T at right angles to the field. What is the magnetic force acting on proton ?

A

`3.2 xx 10^-13 N`

B

`2.3 xx 10^-13 N`

C

`3.2 xx 10^-10 N`

D

`3 xx 10^-15 N`.

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