A spherical conductor `A` contains two spherical cavities as shown in Fig.2.127. The total charge on conductor itself is zero . However , there is a point charge `q_(1)` at the center of one cavity and `q_(2)` at the center of the other cavity . Another charge `q_(3)` is placed at a large distance `r` from the center of the spherical conductor.

The force acting on conductor `A` will be

A spherical conductor A contains two spherical cavities as shown in Fig.2.127. The total charge on conductor itself is zero . However , there is a point charge q_(1) at the center of one cavity and q_(2) at the center of the other cavity . Another charge q_(3) is placed at a large distance r from the center of the spherical conductor. Which of the following statements are true ?

A spherical conductor A contains two spherical cavities as shown in Fig.2.127. The total charge on conductor itself is zero . However , there is a point charge q_(1) at the center of one cavity and q_(2) at the center of the other cavity . Another charge q_(3) is placed at a large distance r from the center of the spherical conductor. Which of the following statements are true ?

A spherical conductor A contains two spherical cavities as shown in Fig.2.127. The total charge on conductor itself is zero . However , there is a point charge q_(1) at the center of one cavity and q_(2) at the center of the other cavity . Another charge q_(3) is placed at a large distance r from the center of the spherical conductor. If q_(1) is displaced from its center slightly (being always inside the same cavity ), then the correct representation of field lines inside the same cavity is

A spherical conductor A contains two spherical cavities as shown in Fig.2.127. The total charge on conductor itself is zero . However , there is a point charge q_(1) at the center of one cavity and q_(2) at the center of the other cavity . Another charge q_(3) is placed at a large distance r from the center of the spherical conductor. If q_(1) is displaced from its center slightly (being always inside the same cavity ), then the correct representation of field lines inside the same cavity is

Electric potential at the center ofa charged hollow spherical conductor is

The electric field intensity at a point located at distance r(r lt R) from the center of a spherical conductor (radius R) charged Q will be-

A point charge +q is held at a distance R from the centre of an uncharged spherical conductor of radius a(a lt R) . Calculate the potential of the conductor in the presence of q.

A charged spherical conductor of radius R carries a charge Q. A point test charge 9o is placed at a distance from the surface of the conductor. The force experienced by the test charge will be proportional to: