An electron and a proton move in circular orbits in a plane perpendicular to a uniform magnetic field B>. Find the ratio of theradii of their circular orbits when the electron and the proton have(a) the same momentum and (b) the same kinetic energy.

An electron and a proton move in circular orbits in a plane perpendicular to a uniform magnetic field B>. Find the ratio of theradii of their circular orbits when the electron and the proton have(a) the same momentum and (b) the same kinetic energy.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter26: Electromagnetism

Section: Chapter Questions

Problem 6STP

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Concept explainers

Magnetic Force

A magnetic force arises when a charged particle or a current-carrying conductor is placed in a magnetic field. It is created because of the movement of the charged particles.

Question

An electron and a proton move in circular orbits in a plane perpendicular to a uniform magnetic field B
>
. Find the ratio of the
radii of their circular orbits when the electron and the proton have
(a) the same momentum and (b) the same kinetic energy.

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