A uniformly charged thin spherical shell of radius R carries uniform surface charge denisty of `isgma` per unit area. It is made of two hemispherical shells, held together by presisng them with force F(see figure). F is proportional to

A uniformly charged thin spherical shell of radius R carries uniform surface charge density of sigma per unit area.It is made of two hemispherical shells hold together by pressing them with force F.F is equal to qquad F + + +(1)/(+)+

Consider a thin spherical shell of radius R consisting of uniform surface charge density sigma . The electric field at a point of distance x from its centre and outside the shell is

A uniformly charged thin conducting spherical shell of radius R and charge q is rotated with constant angular velocity omega about a diameter. The magnetic dipole moment of the system is

Two uniformly charged concentric spherical shells of radius R and r, are given charges Q_1 and Q_2 respectively. If their potential difference is V, then it will not depends upon:

A thick conducting spherical shell of inner radius a and outer radius b is shown in figure. It is observed that the inner face of the shell carries a uniform charge density -sigma . The outer surface also carries a uniform surface charge density +sigma . (a) Can you confidently say that there must be a charge inside the shell? Find the net charge present on the shell. (b) Find the potential of the shell.

(a) Using Gauss's law, derive an expression for the electric field intensity at any point outside a uniformly charged thin spherical shell of radius R and charge density sigma C//m^(2) . Draw the field lines when the charge density of the sphere is (i) positive, (ii) negative. (b) A uniformly charged conducting sphere of 2.5 m in diameter has a surface charge density of 100 mu C//m^(2) . Calculate the (i) charge on the sphere (ii) total electric flux passing through the sphere.

Conisder a thin spherical shell of radius R with centre at the origin, carrying uniform poistive surface charge denisty. The variation of the magnitude of the electric field |vecE(r)| and the electric potential V(r) with the distance r from the centre, is best represented by which graph?