Lenz's law is the consequence of the law of conservation of

A. Energy

B. Charge

C. Field lines

D. Momentum

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  1. Flux linkages equals
  2. Which of the following materials has permeability slightly less than that of free space?
  3. How much is the flux in Weber in the above problem?
  4. A negative ion results when an atom gains an additional
  5. The greater percentage of materials is _________.
  6. The B-H curve for ________ is a straight line passing through the origin.
  7. A magnetic material losses its ferromagnetic properties at a point called
  8. Who discovered the most important electrical effects which is the magnetic effect?
  9. It is the reciprocal of reluctance and implies the case of readiness with which magnetic flux is developed.
  10. One of the common application of an air- cored choke.
  11. Electrons at the outer shell are called
  12. The physical motion resulting from the forces of magnetic fields is called
  13. The relation between absolute permittivity of air ( 0)a absolute p and velocity of light (c) is given…
  14. The force of attraction or repulsion between two magnetic poles is inversely proportional to the square…
  15. Mmf in a magnetic circuit corresponds to _____ in an electric circuit
  16. Which of the following is used by temporary magnets as the magnetic material?
  17. What determines the value of the temperature coefficient of resistance of a material?
  18. The idea of preventing one component from affecting another through their common electric and magnetic…
  19. Magnetic effects of the earth as a huge magnet with north and south poles.
  20. The core of a magnetic equipment uses a magnetic material with
  21. If the number of valence electrons of an atom is more than 4a the substance is called
  22. Define as that pole which when placed in air from a similar and equal pole repels it with a force of…
  23. A factor used to correct for the electrostatic forces of the more distant ions in an ionic solid.
  24. The force which set ups or tends to set up magnetic flux in a magnetic circuit
  25. The unit of electrical energy is
  26. The force between two magnetic poles is _______ their pole strengths.
  27. If the length and area of cross-section of a wire are doubleda then its resistance
  28. Calculate the permeability (in T/A. t/m) of a magnetic material that has a relative permeability of…
  29. The magnetic flux through a coil changes. This results to the induced emf acting in a direction as to
  30. __________ is a substance of whose molecules consist of the same kind of atom.