Defined as a closed path in which magnetic induction or flux flows

A. Electric circuit

B. Magnetic circuit

C. Electronic circuit

D. Electromagnetic circuit

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  1. The reluctance of a magnetic circuit is not dependent on which of the following?
  2. If the relative permittivity of a material is 10a then its permittivity is
  3. Magnetic effects of the earth as a huge magnet with north and south poles.
  4. The magnetic field of a magnetized iron bar when strongly heated
  5. The relative permeability of a magnetic material is 10^5. What is its permeability?
  6. The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.
  7. The hot resistance of an incandescent lamp is about _______ its cold resistance.
  8. The temperature coefficient of resistance of semiconductors is
  9. States that the ratio of the thermal conductivity is proportional to the absolute temperature for all…
  10. The ability of a material to conduct magnetic flux through it.
  11. What is used as the dielectric material in high voltage transformers?
  12. Electric field intensity is a ________.
  13. The electric flux density is a ________ quantity.
  14. The temperature coefficient of resistance of insulators is
  15. Who developed the electromagnetic theory of light in 1862?
  16. The emf induced in a coil due to the change of its own flux linked with it is called
  17. Materials that have very high permeabilities (hundreds and even thousands times of that of free space)
  18. Which of the following electric quantities is vector in character?
  19. This paper does not exhibit electricity because it contains the same number of
  20. A good conductor has how many valence electrons?
  21. In electro-mechanical conversion devices like generators and motors the reason why a small air gap is…
  22. The magnetic field inside a solenoid
  23. One oersted (Oe) is equivalent to _____ Gb/cm.
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    A magnetic pole produces 5000 field lines. How much is the flux in webers? A. 50 10^-6
  25. The electric potential at a point in air due to a charge is 21 V. If the air is replaced by a medium…
  26. The science of adapting electronics to aerospace flight.
  27. A law establishing the fact that the algebraic su of the rises and drops of the mmf around a closed…
  28. If the number of valence electrons of an atom is less than 4a the substance is called
  29. An alloy of 22 percent iron and 78 per cent nickel.
  30. The mass of proton is __________ the mass of an electron.