PHYSICS
CLASS-12
CBSE BOARD/JEE-IIT/NEET/ICSE BOARD/BSEB (BIHAR BOARD)
LECTURE-6
CHAPTER : MAGNETS AND EARTH MAGNETISM
TOPICS :
TORQUE EXPERIENCED BY BAR MAGNET ( MAGNETIC DIPOLE ) HELD IN A UNIFORM MAGNETIC FIELD,
POTENTIAL ENERGY OF A MAGNETIC DIPOLE ( BAR MAGNET ) PLACED IN A UNIFORM MAGNETC FIELD :
Torque on a bar magnet placed in a magnetic field:
Definition of torque,
Derivation of an expression for torque,
Special cases,
Vector form of expression,
Definition of torque in terms of dipole moment,
Potential energy of a bar magnet held in a magnetic field :
Definition,
Derivation of an expression for potential energy,
Special cases,
Vector form of expression.
BY SHIVANAND CHOUDHARY
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B.D.GURUKUL
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