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The process by which an emf and hence current is generated or induced in a conductor when there is a change in the magnetic flux linking the conductor is called

A. Electromagnetic induction

B. Mutual induction

C. Faraday's law

D. Electromagnetic interference

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  1. What is the SI unit of reluctance?
  2. How much is the flux in Weber in the above problem?
  3. States that the ratio of the thermal conductivity is proportional to the absolute temperature for all…
  4. Ohm's law cannot be applied to which material?
  5. Electric lines of force leave or enter the charge surface at an angle of
  6. The energy stored in an electrostatic field or electromagnetic field is called
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  9. Electric field intensity is a ________.
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  12. The magnetic materials should have a large hysteresis loss for one of the following applications.
  13. Hipernik is an alloy containing __________ iron and __________ nickel.
  14. The reluctance of the magnetic circuit is ________ relative permeability of the material comprising…
  15. Core materials of a good relay have _________ hysteresis loop.
  16. The emission of electrons from hot bodies is called
  17. The amount of magnetizing force to counter balance the resid magnetic material is referred to as
  18. Which of the following materials has the least hysteresis loop area?
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    A magnetic pole produces 5000 field lines. How much is the flux in webers? A. 50 10^-6
  20. One of the common application of an air- cored choke.
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    When the current flowsa the magnetic field . conductor is in what direction?
  22. Lenz's law is the consequence of the law of conservation of
  23. The air space between poles of magnets
  24. The net electrical charge in an isolated system remains constant. This is known as
  25. The core of a transformer heats up when its primary is fed from an ac source because of
  26. The core of a magnetic equipment uses a magnetic material with
  27. What is the SI unit of conductance?
  28. If the relative permittivity of a material is 10a then its permittivity is
  29. The unit of flux is _____ in cgs system.
  30. The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.