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KCET2015PhysicsCurrent Electricity

Core of electromagnets are made of ferromagnetic material which has

Options

  1. Ahigh permeability and low retentivity
  2. Bhigh permeability and high retentivity
  3. CIow permeability and high retentivity
  4. Dlow permeability and low retentivity

Correct answer

A. high permeability and low retentivity

Step-by-step solution

Core of electromagnets are made of ferromagnetic material which has high permeability and low retentivity. An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The core material is made from a ferromagnetic material such as iron, nickel, cobalt.

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