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Question

A magnetic pressure which sets up or tends to set up flux in a magnetic circuit is called-

The correct answer is

Magnetomotive force

Just like an electric circuit has a source of electromotive force (EMF) that drives electric current, a magnetic circuit has a source of magnetomotive force (MMF) that drives magnetic flux. This description perfectly matches the definition and function of Magnetomotive force (MMF).

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Important Questions from Magnetostatics

  1. In Faraday's Law application, current will be induced:

  2. A magnetic material has a hysteresis loop area of 0.4 J for each cycle. If the material is subjected to a frequency of 40 Hz, what is the total hysteresis loss per second?

  3. A magnet is kept in the medium of air surrounded by an iron ring. The magnetic lines of force from the magnet will be

  4. The magnetostatics highly relies on which property?

  5. What is the coercive magnetic force (H C) value of ceramic type of permanent magnetic material?

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