EASY
12th CBSE
IMPORTANT
Earn 100

State Coulomb's law of magnetic forces. Hence define a unit magnetic pole.

Important Questions on Magnetism

EASY
12th CBSE
IMPORTANT
What is a magnetic dipole? Define magnetic dipole moment. Give its SI unit.
EASY
12th CBSE
IMPORTANT
What are magnetic lines of force? Sketch the magnetic field lines of a bar magnet.
EASY
12th CBSE
IMPORTANT
What are magnetic lines of force? Give their important properties.
EASY
12th CBSE
IMPORTANT
What is a uniform magnetic field? Give an example and sketch lines of force of such a field.
EASY
12th CBSE
IMPORTANT
What is the name given to the curves the tangent to which at any point gives the direction of the magnetic field at that point? Can two such curves intersect each other? Justify your answer.
MEDIUM
12th CBSE
IMPORTANT
Derive an expression for the torque experienced by a magnetic dipole in a uniform magnetic field. Hence obtain the expression for the potential energy of the dipole.
EASY
12th CBSE
IMPORTANT
Derive an expression for the torque on a magnetic dipole placed in a magnetic field and hence define magnetic dipole moment.
EASY
12th CBSE
IMPORTANT
Derive an expression for the potential energy of a bar magnet when placed in a uniform magnetic field.