A charged particle going around in a circle can be considered to be a current loop. A particle of a mass m carrying charge q is moving in a plane with speed v under the influence of magnetic field B → . The magnetic moment of this moving particle is :

Question

A charged particle going around in a circle can be considered to be a current loop. A particle of a mass m carrying charge q is moving in a plane with speed v under the influence of magnetic field B → . The magnetic moment of this moving particle is :, m v 2 B → 2 B 2, - m v 2 B → 2 πB 2, − m v 2 B → B 2, − m v 2 B → 2 B 2

MARKS App · Accepted Answer

i = q T = q v 2 π r M = i × π r 2 = 2 v 2 π r × π r 2 = 1 2 q v × m v q B Direction of M → is opposite of B → therefore M → = - mv 2 B → 2 B 2

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