A solid spherical region, having a spherical cavity whose diameter R is equal to the radius of the spherical region, has a total charge Q. Find the electric field at a point P as shown in figure
.

A solid spherical region having a spherical cavity whose daimeter R is equal to the radius of the spherical region, has a total charge 'Q' . Find the electric field and potential at a point P as shown.

A spherical shell of radius R has a charge +Q units. The electric field due to the shell at a point

Three conducting spherical shells have charges q,-2q and 3q as shown in figure. Find electric Potential at point P as shown in figure.

Three conducting spherical shells have charges q,-2q and 3q as shown in figure. Find electric Potential at point P as shown in figure.

A spherical shell of radius R has a charge +q units. The electric field due to the shell at a point

A non-spherical hollow conductor is given a charge Q. What is the electric field in the cavity?

A solid metallic sphere has a charge +3Q . Concentric with this sphere is a conducting spherical shell having charge -Q . The radius of the sphere is a and that of the spherical shell is b(bgta) What is the electric field at a distance R(a lt R lt b) from the centre