Home

A theorem which states that an electric current flowing in a circuit produces a magnetic field at external points equivalent to that due to a magnetic shell whose bounding edge is the conductor and whose strength of the current.

A. Joule's law

B. Faraday's law

C. Volta's theorem

D. Ampere's theorem

You can do it
  1. Amorphous solid is also called
  2. Which of the following materials has the highest dielectric strength?
  3. What is the other name for dielectric strength?
  4. What is used as the insulating material or dielectric in an electric ion
  5. When the relative permeability of a material is slightly more than 1a it is called ______ material.
  6. A magnetic circuit carries a flux iin the iron part and a fluxgin the air gap. What is the leakage coefficient?
  7. Ohm's law cannot be applied to which material?
  8. What is used as the dielectric material in high voltage transformers?
  9. The energy stored in an electrostatic field or electromagnetic field is called
  10. Permanent magnets can be found in
  11. What is the unit of reluctance?
  12. Permeance is analogous to
  13. If on looking at any one end of a solenoid; the direction of current flow is found to be clockwise then…
  14. Electric potential is a _______ quantity.
  15. If the number of valence electrons of an atom is less than 4a then the substance is probably
  16. Cobalt is an example of a ______ material.
  17. A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing…
  18. One of the common application of an air- cored choke.
  19. A factor used to correct for the electrostatic forces of the more distant ions in an ionic solid.
  20. All magnetic field originates from
  21. The B-H curve of ________ is not a straight line.
  22. Small voltages generated by a conductor with current in an external magnetic field.
  23. The air space between poles of magnets
  24. Materials that have very high permeabilities (hundreds and even thousands times of that of free space)
  25. A negatively charge body has
  26. The magnetic field of a bar magnet most closely resembles the magnetic field of
  27. One farad equals
  28. If the value of 0 a conductor is 1/234 per oCa then the value of 18is
  29. When a current carrying conductor is placed in a magnetic fielda the maximum force will act on the conductor…
  30. Whenever a conductor cuts magnetic fluxa an emf is induced in it. This is known as