A point charge q is placed in a cavity in a metal block. If a charge Q is brought outside the metal, will the charge q feel an electric force?

A spherical metallic conductor has a spherical cavity. A positive charge is placed inside the cavity at its centre. Another positive charge is placed outside it. The conductor is initially electrically neutral. {:(,"Column I (Cause)",,,"Column II (Effect)"),((A),"If outside is shifted to other position",,(p),"Distribution of charge on innner surface"),(,,,,"of cavity charges"),((B),"If inside charge is shifted to other position",,(q),"Distribution of charge on outer surface of"),(,,,,"conductor charges"),((C),"If magnitude of charge inside cavity is",,(r),"Electric potential at the centre of conductor"),(,"increased",,,"changes due to charges present"),(,,,,"on outer surface of conductor"),((D),"If conductor is earthed",,(s),"Force on the charge placed inside"),(,,,,"cavity changes"):}

If a point charge q is placed at one corner of a cube, what is the flux linked with the cube?

A point charge q is placed at the centre of a cube of side length L . The electric flux emerging from the cube is……

A point charge Q is placed at the centre of a spherical conducting shell. A total charge of -q is placed on the shell. The magnitude of the electric field at point P_1 at a distance R_1 from the centre is X. The magnitude of the electric field due to induced charges at point P_2 a distance R_2 from the centre is Y. The values of X and Y are respectively.

A point charge +q, is placed at a distance d from an isolated conducting plane. The field at a point P on the other side of the plane is

Two equal point charges are fixed at x=-a and x=+a on the x-axis. Another point charge Q is placed at the origin. The change in the electrical potential energy of Q, when it is displaced by a small distance x along the x-axis, is approximately proportional to

If a point charge q is placed at the centre of a cube. What is the flux linked (a) with the cube? (b) with each face of the cube?

A charge Q_1 exerts some force on a second charge Q_2 . If a 3rd charge Q_3 is brought near, the force of Q_1 exerted on Q_2 :-

Statement-1 : If a point charge q is placed in front of an inifinite grounded conducting plane surface, the point charge will experience a force. Statement-2: This forc is due to the induced charge on the conducing surface which is at zero potential

Two charges, each equal to q, aer kept at x=-a and x=a on the x-axis. A particle of mass m and charge q_0=q/2 is placed at the origin. If charge q_0 is given a small displacement (ylt lt a) along the y-axis, the net force acting on the particle is proportional to