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A particle of mass m and carrying a charge -q1 is moving around a charge +q2 along a circular path of radius r. Find period of revolution of the charge -q1.

A particle of mass m and carrying a charge -q1 is moving around a charge +q2 along a circular path of radius r. Find period of revolution of the charge -q1.

Grade:12th Pass

1 Answers

Sanjeev Malik IIT BHU
101 Points
9 years ago

find the force between the two charges using coulumb force formula.

see that force is attracting. also charge -q1 is revolving

thus it is the  case of circular motion with that force acting as centripital force.

equate it to mw2r    (centripital force on body of mass m and revolving with w angular speed)

find w.

 

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