Thu April 14, 2011 By: Manu P.prakash
Q) dear madam , i have a doubt in this question.


Expert Reply
Sat April 16, 2011
Since -q is moving around a charge +q along a circular path of radius r, therefore acceleration will be towards the center and has a magnitude  where v is the constant speed along a circle of radius r., from Newton,s law,
Therefore Time period will be
Hence shown
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