Magnetic current is composed of which of the following?

Magnetic current is composed of which of the following? Correct Answer Both conduction and displacement component

Magnetic current:

  • Magnetic current is, nominally, a current composed of fictitious moving magnetic monopoles. 
  • The usual symbol for magnetic current is 'k' which is analogous to 'i' for electric current.
  • Magnetic currents produce an electric field analogously to the production of a magnetic field by electric currents.
  • So it is composed of both conduction and displacement components.

 

Conduction current: 

  • It is the electric current that exists in a conductor when the electrons flow in the conductor at a uniform rate.
  • So, it is the current in a conductor when the electric field remains constant with respect to time.

 

Displacement current:

  • The current existing between the plates of a parallel plate capacitor is the displacement current.   
  • Note that the conduction current is due to the flow of electrons, whereas the displacement current is due to the displacement of electrons in a time-varying electric field.
  • The importance of displacement current lies in maintaining a continuity to the path of current flow through the capacitor.

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