Electrons moving with different speeds enter a uniform magnetic field in a direction perpendicular t

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4.Moving Charges and Magnetism

medium

Electrons moving with different speeds enter a uniform magnetic field in a direction perpendicular to the field. They will move along circular paths.

A

of same radius

B

with larger radii for the faster electrons

C

with smaller radii for the faster electrons

D

either $(b)$ or $(c)$ depending on the magnitude of the magnetic field

Solution

$r=\frac{m v}{q B} \Rightarrow r \propto v$

Standard 12

Physics

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(AIPMT-2008)