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Force on a charge in electric and magnet...

Force on a charge in electric and magnetic fields
A charge particle follows a parabolic path in a uniform electric field and a charged particel moving in a uniform magnetic field has two kinds of motions
lnear motion in the direction of magnetic field and circular motion in a plane perpendicular to the magnetic field. when charge q is moving perpendicular to the magnetic field B, the radius of the circular path is `r=(mv)/(Bq)`. If v and B makes an angle `theta`, then `r=(mvsintheta)/(Bq)`, and the time period `T=(2pim)/(Bq)`.
If an electron and a proton having same momenta enter perpendicular to a magnetic field, then

A

curved path of electron and proton will be same

B

they will move undeflected

C

path of proton is more curved.

D

curved path of electron is more curved.

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