Recent content by rkrthegreat

Thanks mate, I guess that's what was to be assumed, to reduce the question to a case of electrostatics. That was what I too needed to confirm, otherwise there could have been many paths to take on this question. (I wrote take T as small because I thought you were proceeding to solve it using...

Yes, take T as very small

Oh, I'm sorry, forgot to put that in the diagram. Take the resistance as R0. As for how fast the charge moves, the velocity at any position can be calculated, the amplitude of motion and time period being given in the question.

In the situation shown in the figure a particle having charge q is executing simple harmonic motion of amplitude A and time period T in front of a CONDUCTING EARTHED SPHERE of radius R. The reading of the voltmeter when the charge particle is at its mean position(at a distance r from the...

A little more detailed, step by step reply in one post would be very good, sir, because this is my first encounter with these types of problems. You see, I am in class 11th, in India, preparing for IIT JEE, and I am very much interested in physics, so this question is not exactly a homework or...

But won't the particle move along the direction of the string also? Since it is being pulled, length of the string is decreasing with time, so the particle should have one component of its motion along the string too. I have attached a diagram as to how the forces are directed in my opinion...

One last clarification required sir, could you also explain why the particle moves perpendicular to the tension?

Here's the diagram given in the book (problems in physics by Abhay Kumar Singh) for further clarification of the situation: http://www.goiit.com/posts/downloadAttach/35730.htm

I don't get it sir, why should the Tension and friction be perpendicular to each other? It would be very helpful if you could give a more elaborate explanation of this, and how you approached the problem.

Homework Statement A particle is placed on a rough plane inclined at an angle theta, where tan θ = μ = coefficient of friction(both static an dynamic). A string attached to the particle passes through a small hole in the plane. The string is pulled so slowly that you may consider the particle...