Each question carries one mark
- What is a magnetic dipole?
- What is the difference between electric field lines and magnetic field lines?
- Write an expression for the magnetic field at a point on the axis of a circular group carrying current and hence write equation for the magnetic dipole moment of the loop?
- What is Bohr magneton and write its equation and value?
- State Gauss’s law in magnetism?
- Define magnetic meridian?
- Define magnetic declination?
- Define angle of dip or magnetic inclination?
- Define magnetizing force and intensity of magnetization?
- Draw the hysteresis loop for a ferromagnetic substance.
- Define retentivity and coercivity
- Repulsion the surest test of polarity. Comment
- State Curie’s law of magnetism
- Define magnetic susceptibility
- Compare the relative permeability of paramagnetic , diamagnetic and ferromagnetic substances.
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