Question

:- Calculate the radius (r) of the loop when a charged particle is
projected perpendicular to a Magnetic field Intensity(B) ?​

Answer 1

Answer :

A charged particle of charge q is projected perpendicular to a magnetic field of intensity B at a speed B.

We have to find radius of circular path$.$

★ In a perpendicular magnetic field, the charge follows a circular path.

We know that, charged parties experience magnetic force while moving in perpendicular magnetic field.

• Magnetic force = qvB

In this circular motion, magnetic force acts as centripetal force.

• Centripetal force = mv²/r

∴ qvB = mv²/r

∴ qB = mv/r

∴ r = mv/qB

Cheers!

Answer 2

Answer:

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