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Electricity and Magnetism

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Oscillations of a Charge between Charges

EANDM-N5YWID

Two positive charges $Q=1\mu C$ are held at a fixed distance $d=10$ cm apart. A particle of mass $m=2$ g and charge $-q=-2\mu C$ is placed midway between them and given a small displacement $x\ll d$ in the direction perpendicular to the line joining the two positive charges, and released.

What is the period of the subsequent oscillatory motion of the particle?

Created for Albert.io. Copyright 2016. All rights reserved.

A

0.037 s

B

0.3 s

C

30 s

D

We need to know $x$ to solve for the period.