Q. A particle of mass m having negative charge q moves along an ellipse around a fixed positive charge Q so that its maximum and minimum distances from fixed charge are equal to r1 and r2 respectively.Calculate the angular momentum of the particle.
How do we go along with this one....
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1 Answers
21hint:
1) The angular momentum is going to be conserved ,because ____
2) Let the speed of the particle when the distance is r1 be v1 and when it is r2 be v2. The mv1r1 = mv2r2
3) moreover energy is conserved . i.e Electrostatic Potential energy + kinetic energy of the moving charge is constant.
The idea of the solution is gravitation problems of Irodov.