Q- Two tiny identical metal balls each of mass 10g and carrying equal positive charges are suspended from a point by “weightless” insulated strings each of 1m length. The balls repel each other and come to an equilibrium position with each string making an angle of 370 to the vertical.
(a) Draw …
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. August 2016
Eletrostatics: Coulomb's law
Hydrogen Atom
Q- The normal hydrogen atom consists of a proton nucleus and an orbital electron. Assume that the electron orbit is circular and that the constant distance between the proton and electron is 5.3 x 10-11 m.
(a) What is the force of attraction between the two fundamental particles?
(b) What is the o…
Rod rotating with a particle
Q- A uniform rod AB, of mass m and length 4a, is free to rotate in a vertical plane about a fixed horizontal axis through the point X on the rod, where AX = a. The rod is hanging at rest with B below A, when it is struck at its mid point by a particle of mass 3m moving horizontally with speed u in a…
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