Two identical electric point dipoles have dipole moments `vec(P_1) = p hati and vec(P_2) = p hati` and are held on the x axis at distance 'a' from each other. When released, they move along the x-axis with the direaction of their dipole moments remaining unchanged. If the mass of each dipole is 'm', their speed when they are infinitely for apart is :

Two point dipoles of dipole moment vec(p)_(1) and vec(p)_(2) are at a distance x from each other and vec(p)_(1)||vec(p)_(2) . The force between the dipoles is :

Two electric dipoles, A, B with respective dipole moments vec(d_(A))=-4" qa "hati and vec(d_(B))=-2" qa "hati are placed on the x-axis with a seperation R, as shown in the figure The distance from A at which both of them produce the same potential is :

Two electric dipoles, A, B with respective dipole moments vec(d_(A))=-4" qa "hati and vec(d_(B))=-2" qa "hati are placed on the x-axis with a seperation R, as shown in the figure The distance from A at which both of them produce the same potential is :

Two identical electric dipoles of dipole moments p are placed as shown in the figure. The electrostatic force on dipole placed along x-axis is (d

A dipole of dipole moment vec(P) is placed in uniform electric field vec(E) , then torque acting on it is given by

A dipole of dipole moment vec(P) is placed in uniform electric field vec(E) , then torque acting on it is given by

A very small electric dipole with dipole moment p is placed in such in way that it is at a distance r from another point charge +q. The point charge lies on the axis of the dipole . Electric dipole moment is pointing towards the point charge. Determine electric dipole will attract the point charge or repel it ? What will be the magnitude of force between them ?

Two short electric dipoles having dipole moment p_(1)" and "p_(2) are placed co-axially and uni-directionally, at a distance r apart. Calculate nature and magnitude of force between them :