Sphere of inner radius a and outer radius b is made of `p` uniform resistivity find resistance between inner and outer surface

A hollow cylinder of specific resistance rho , inner radius R , outer radius 2R and length l is as shown in figure. What is the net resistance between the inner and outer surfaces?

A hollow cylinder of specific resistance rho , inner radius R , outer radius 2R and length 1 is as shown in figure. What is the net resistance between the inner and outer surfaces?

A hollow cylinder of specific resistance rho , inner radius R, outer radius 2R and length l is as shown in figure. What is the net resistance between the inner and outer surface?

A cylindrical tube of length l has inner radius a while outer radius b. What is the resistance of the tube between (a) its ends (b) inner and outer surfaces ? (The resistivitiy of its material is p)

A cylindrical tube of length l has inner radius a while outer radius b. What is the resistance of the tube between (a) its ends (b) inner and outer surfaces ? (The resistivitiy of its material is p)

A point charge +q is placed at the centre of a conducting spherical shell of inner radius a and outer radius b. Find the charge appearing on the inner and outer surface of the shell.

A point charge +q is placed at the centre of a conducting spherical shell of inner radius a and outer radius b. Find the charge appearing on the inner and outer surface of the shell.

Statement-1 : A hollow metallic sphere of inner radius a and outer radius b has charge q at the centre. A negatively charged moves from inner surface outer surface. Then total work done will be zero. Statement-2: Potential is constant inside the metallic sphere.