Why is it not possible to charge just one end of a metal rod ?

Why is it not possible to charge a metal rod holding it in hand? What will you do to charge the rod?

Why it is not possible to electrify a metal rod by rub- bing while holding it with bare hand?

Why is the sound produced at one end of a metallic pipe heard twice at the other end ?

Explain why it is not possible to magnetise an iron rod beyond a certain limit ?

What factored affect the rate at which steady state is achieved when one end of cold metal rod is heated ?

A rod of length l, has a uniform positive charge per unit length and a total charge Q. calculate the electric field at a point P located along the long axis of the rod and at a distance a from one end

A rod of length l, has a uniform positive charge per unit length and a total charge Q. calculate the electric foeld at a point P located along the long axis of the rod and at a distance a from one end

A charge Q is uniformly distributed over a rod of length iota . Condider a hypothetical cube of edge iota with the centre of the cube at one end of the rod. Find the minimum possible flux of the electric field through the entire surface of the cube.