Related Questions
Two short magnets having magnetic moments in the ratio , when placed on opposite sides of a deflection magnetometer, produce no deflection. If the distance of the weaker magnet is 0.12 m from the centre of deflection magnetometer, the distance of the stronger magnet from the centre is
0.06
0.18
The magnetic field is strongest at which point of a bar magnet?
Center
Poles
Midway between the center and either pole
The field strength is uniform everywhere
The magnetic field due to a short magnet at a point on its axis at distance from the middle point of the magnet is . The magnetic field at a point on the neutral axis at a distance from the middle of the magnet is
100
400
The magnetic field lines due to a bar magnet:
Form closed loops.
Originate at the south pole and terminate at the north pole.
Originate at the north pole and terminate at the south pole outside the magnet.
Are parallel to the axis of the magnet.
The points are situated perpendicular to the axis of 2 cm long bar magnet at large distances and 3 from the centre on opposite sides. The ratio of magnetic fields at will be approximately equal to
A short magnet of moment produces a neutral point on its axis. If horizontal component of earth’s magnetic field is , then the distance of the neutral point should be
10
20
30
40
A bar magnet of magnetic moment is bent into a semicircle. The new magnetic moment is:
The magnetic potential at a point on the axial line of a bar magnet of dipole moment is . What is the magnetic potential due to a bar magnet of dipole moment at the same point
The magnetic induction field strength at a distance on the axial line of a short bar magnet of moment is
Breaking a bar magnet in half results in:
One magnet with only a north pole and another with only a south pole.
Two smaller bar magnets, each with a north and south pole.
Two pieces of non-magnetic material.
One smaller bar magnet and one piece of non-magnetic material.