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The diameter of a hydrogen atom is approximately ______ cm.

A. 1.1 x 10^-6

B. 1.1 x 10^7

C. 1.1 x 10^-8

D. 1.1 x 10^-9

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  1. Hysteresis loss can be reduced by one of the following.
  2. Which of the following electric quantities is vector in character?
  3. Two similar polesa each 1Wba placed 1 m apart in air will experience a repulsive force of
  4. How much is the flux in Weber in the above problem?
  5. A permanent magnet does not exert a force on
  6. What determines the value of the temperature coefficient of resistance of a material?
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    When the current flowsa the magnetic field . conductor is in what direction?
  8. A magnetic material losses its ferromagnetic properties at a point called
  9. What is the diameter of an atom?
  10. Residual magnetism refers to the flux densitya which exists in the iron core when the magnetic field…
  11. The conduction of electricity across the surface of a dielectric is called
  12. Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as
  13. What is used as the insulating material or dielectric in an electric ion
  14. The force between two magnetic poles is _____ their poles strength.
  15. Referred to as the specific reluctance of a material
  16. The unit of flux is _____ in cgs system.
  17. The direction of force o a current carrying conductor placed in a m found by
  18. A magnetic flux of 2.5 x10^4 Wb through an area of 5 x10^4 square meters results in
  19. Electric field intensity is a ________.
  20. A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing…
  21. The resistivity of a conductor ___________ with an increase in temperature.
  22. Who developed the electromagnetic theory of light in 1862?
  23. This paper does not exhibit electricity because it contains the same number of
  24. Which of the following is a paramagnetic material?
  25. Lenz's law is the consequence of the law of conservation of
  26. A law relating between the magnetic and electric susceptibilities and the absolute temperatures which…
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    A magnetic pole produces 5000 field lines. How much is the flux in webers? A. 50 10^-6
  28. The dielectric constant of most materials lies between
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