A conducting sphere of radius $r$ has a charge. Then

  • A

    The charge is uniformly distributed over its surface, if there is an external electric field.

  • B

    Distribution of charge over its surface will be non uniform if no external electric field exist in space.

  • C

    Electric field strength inside the sphere will be equal to zero only when no external electric field exists

  • D

    Potential at every point of the sphere must be same

Similar Questions

‘At the surface of a charged conductor electrostatic field must be normal to the surface at every point’. Explain.

Three concentric metallic spherical shells of radii $R, 2R, 3R$, are given charges $Q_1, Q_2, Q_3$, respectively. It is found that the surface charge densities on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, $Q_1 : Q_2 : Q_3$ is

Two concentric hollow conducting spheres of radius $r$ and $R$ are shown. The charge on outer shell is $Q$. What charge should be given to inner sphere so that the potential at any point $P$ outside the outer sphere is zero?

Two uniformly charged spherical conductors $A$ and $B$ of radii $5 mm$ and $10 mm$ are separated by a distance of $2 cm$. If the spheres are connected by a conducting wire, then in equilibrium condition, the ratio of the magnitudes of the electric fields at the surface of the sphere $A$ and $B$ will be .

  • [JEE MAIN 2022]

Figure shows a solid conducting sphere of radius $1 m$, enclosed by a metallic shell of radius $3 \,m$ such that their centres coincide. If outer shell is given a charge of $6 \,\mu C$ and inner sphere is earthed, find magnitude charge on the surface of inner shell is ............. $\mu C$