Bar magnet
Bar magnet: Overview
This Topic covers sub-topics such as Bar Magnet, Magnetic Field Lines, Properties of Magnetic Field Lines, Permanent Magnet, Bar Magnet as an Equivalent Solenoid, Magnetic Field Lines of a Bar Magnet, Properties of Bar Magnet and, Magnetic Monopole
Important Questions on Bar magnet
The magnetic moment of a circular orbit of radius 'r' carrying a charge 'q' and rotating with velocity v is given by
If is the orbital radius and is the orbital velocity of an electron in a hydrogen atom, then its magnetic dipole moment is
Explain how to differentiate between a magnet and an iron rod when they both look identical.
The magnetic field lines due to a bar magnet are correctly shown in
Is it possible to isolate the poles of a magnet?
Which of the following is/are the properties of magnetic field lines?
The best material to make permanent magnets is
The surest test for magnetism is a test for repulsion.
Inside a bar magnet, the magnetic field lines
The net magnetic flux through any closed surface, kept in a magnetic field is
equation is not according to the following
thin bar magnet oscillates with a time period If it is cut into two equal pieces along its axis, time period of oscillation of each piece is
The pole strength of poles of a bar magnet of effective length is . What is its magnetic moment in ?
A uniform magnetic field exists in space in the plane of paper and is initially directed from left to right. When a bar of soft iron is placed in the field parallel to it, the lines of force passing through it will be represented by:
Two identical magnetic dipoles of magnetic moment each are placed at a separation of with their axes perpendicular to each other. The resultant magnetic field at a point midway between the dipoles is,