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A magnetic dipole of dipole moment $$\overrightarrow {\bf{m}} $$ is placed in a non-uniform magnetic field $$\overrightarrow {\bf{B}} .$$ If the position vector of the dipole is $$\overrightarrow {\bf{r}} ,$$ the torque acting on the dipole about the origin is
‘X’ is the product of the pole strength of either magnetic pole and the magnetic length of the magnetic dipole. Identify X.
Which of the following is/are true about dipole? (1) The unit of electric dipole moment is coulomb meter (2) The net charge of the electric dipole is zero (3) The net electric field due to an electric dipole is nonzero. (4) Point diploe is the diploe with a small value of the charge.
Two poles X and Y stand 3√2 m apart, such that the angle of elevation of the top of pole X as observed from the foot of pole Y is 30° and the angle of elevation of the top of pole Y as observed from the top of pole X is 60°. What is the angle of elevation of the top of pole Y from the foot of pole X?
An 80√3 m long electric pole is standing in a park. Another pole is to be placed in the park, such that the top of first pole makes an angle of 30° with the top of second pole and an angle of 45° with the foot of second pole. What is the height of second pole? [Use √3 = 1.732]
A pole on the ground leans at 60° with the vertical. At a point x metre away from the base of the pole on the ground, two halves of the pole subtend the same angle. If the pole and the point are in the same vertical plane, then what is the length of the pole?
Which of the following types of inter molecular interactions or forces is/are called van der Waals forces? 1. London forces 2. Dipole - dipole forces 3. Dipole - induced dipole forces 4. Hydrogen bonding Choose the correct code:
The torque experienced by a magnetic dipole, having dipole moment M, when placed in a uniform magnetic field of intensity B is:
A bar magnet with poles 25 cm apart has a pole strength of 14.4 A-m. What is the magnetic dipole moment of the bar magnet?
An electric field of 1000 V/m is applied to an electric dipole at angle of 45°. The value of electric dipole moment is 10-29 C-m. What is the potential energy of the electric dipole?