
Grade 12Electrostatics
A thin fixed ring of radius 1m has a positive charge 1*105 C uniformly distributed over it. A particle of 0.9 gm having a negative charge of 1*10-6 C is placed on the axis at a distance of 1cm from the ring. Show that the motion of the negatively charged particle is approcimately simple harmonic, calculate the period of oscillations
A thin fixed ring of radius 1m has a positive charge 1*105 C uniformly distributed over it. A particle of 0.9 gm having a negative charge of 1*10-6 C is placed on the axis at a distance of 1cm from the ring. Show that the motion of the negatively charged particle is approcimately simple harmonic, calculate the period of oscillations





