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The quantity of magnetism retained by a magnetic material after withdrawal of the magnetizing force is called

A. Leftover magnetism

B. Hysteresis

C. Residual magnetism

D. Coercivity

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  1. The magnetic field inside a solenoid
  2. The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…
  3. Who demonstrated that there are magnetic effects around every current-carrying conductor and that current-carrying…
  4. When a conductor is stationary and the magnetic field is moving or changing the emf induced is called
  5. The ability of a material to conduct magnetic flux through it.
  6. Which of the following magnetic materials can be easily magnetized in both direction?
  7. The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.
  8. The greater percentage of materials is _________.
  9. One that has magnetic poles produced by internal atomic structure with no external current necessary
  10. If the relative permittivity of a material is 10a then its permittivity is
  11. How many turns are needed to produce a magnetomotive force of 1000 A.t for a coil with 6 amperes?
  12. The lagging effect between flux density of the material and the magne
  13. Amorphous solid is also called
  14. If the number of valence electrons of an atom is more than 4a the substance is called
  15. Which of the following materials has permeability slightly less than that of free space?
  16. The tiniest element of matter
  17. The resistivity of a conductor ___________ with an increase in temperature.
  18. Electric field intensity is a ________.
  19. Cobalt is an example of a ______ material.
  20. A commercial alloy of aluminum nickela and iron with cobalta copper and titanium added to produce about…
  21. The temperature coefficient of resistance of insulators is
  22. If you hold the conductor with right hand so that the stretched thumb points in the direction of the…
  23. Which of the following materials has the highest dielectric strength?
  24. Permeability means
  25. What is the unit of magnetomotive force?
  26. If on looking at any one end of a solenoid; the direction of current flow is found to be clockwise then…
  27. The quantity 10^6 maxwells is equivalent to one
  28. The core of a magnetic equipment uses a magnetic material with
  29. The property of a material which opposes the creation of magnetic flux in it
  30. Defined as the flux density produced in it due to its own induced magnetism