Introduce magnetism and explain What are 3 different types of magnetism?
Magnetism is a class of physical phenomena that are mediated by magnetic fields. Magnetism is caused by either electric current or Spin magnetic moments of elementary particles.
3 different types of magnetism:
paramegnetism: They possess permanent magnetic moment
due to unpaired electrons in partailly filled orbital
Diamagnetism: They opposed applied magnetic field and hence are
repelled by a magnetic field
Ferromagnetism : They posses a permanent magnetic moment even in
the absence of magnetic field
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