Differential formula of conduction | Spherical and Cylindrical shells | Growth of ice | Convection: theoretical discussion

Equipotential surfaces, Conductors and Concentric conducting spherical shell problems, Earthing and connecting two conductors with a wire

Two conducting concentric spherical shells are given positive charges. Choose the correct outcome.

A capacitor is formed of two concentric spherical conducting shells ofradii a and b . If the medium between the spherical shells has a dielectric constant K_(1) from radius a to r and K_(2) from radius r to b , find the capacitance of such a spherical capacitor shown in figure.

In question 15, if the conducting spherical shell is not earthed but is neutral, then the force on q_2 is

A sphercial capacitor is made of two conducting spherical shells of radii a and b.The space between the shells is filled with a dielectric constant K up to a radius c as shown in figure. Calculate the capacitance .

A charge Q is placed at the centre of a spherical conducting shell. Choose the correct option.

A metal sphere of radius r_(1) charges to a potential V_(1) is then placed in a thin-walled uncharged conducting spherical shell of radius r_(2) . Determine the potential acquired by the spherical shell after it has been connected for a short time to the sphere by a conductor.

Figure shows three concentric conducting spherical shells with inner and outer shells earthed and the middle shell is given a charge q . Find the charge distribution of sphere