Draw field lines on a bar magnet, a current carrying finite solenoid and electric dipole.
Draw field lines on a bar magnet, a current carrying finite solenoid and electric dipole.
In figure, the field lines of $(a)$ a bar magnet,$(b)$ a current carrying finite solenoid and $(c)$ electric dipole are shown.
Field lines represents the picturetorial representation of the field's existance.
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A donut-shaped permanent magnet (magnetization parallel to the axis) can slide frictionlessly on a vertical rod. Treat the magnets as dipoles with mass $m_d$ and dipole moment $M$ . When we put two back to back magnets on the rod the upper one will float. At what height $z$ does it float?
A donut-shaped permanent magnet (magnetization parallel to the axis) can slide frictionlessly on a vertical rod. Treat the magnets as dipoles with mass $m_d$ and dipole moment $M$ . When we put two back to back magnets on the rod the upper one will float. At what height $z$ does it float?
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If a piece of metal was thought to be magnet, which one of the following observations would offer conclusive evidence
Give some of the commonly known ideas regarding magnetism.
Give some of the commonly known ideas regarding magnetism.
The unit of magnetic moment is
The unit of magnetic moment is
Magnetic induction is a
Magnetic induction is a