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The temperature coefficient of resistance of eureka is

A. p ositive

B. negative

C. almost zero

D. i nfinite

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  1. What is the relative permittivity of air?
  2. Core materials of a good relay have _________ hysteresis loop.
  3. The point in a magnet where the intensity of magnetic lines of force is maximum
  4. A current if flowing east along a power line. If the earth's field is neglecteda the direction of the…
  5. A law stating that the magnetic susceptibilities of most paramagnetic substances are inversely proportional…
  6. The K shell or the first shell has how many permissible number of orbiting electrons?
  7. Under ordinary conditionsa a body is considered
  8. Steel is hard to magnetize because of its
  9. What is another name for relative permittivity?
  10. The ability of a mechanically stressed ferromagnetic wire to recognize rapid switching of magnetization…
  11. Magnetic intensity is a
  12. What is the SI unit of conductance?
  13. One farad equals
  14. The temperature coefficient of resistance of eureka is
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  16. If the value of 25 of a conductor is 1/230 per oCa then the value of 0is
  17. The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.
  18. A permanent magnet does not exert a force on
  19. Flux density is measured in
  20. The direction of force o a current carrying conductor placed in a m found by
  21. The physical motion resulting from the forces of magnetic fields is called
  22. The unit of flux is _____ in cgs system.
  23. What is the practical unit of electrical energy?
  24. Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as
  25. A negative ion results when an atom gains an additional
  26. What type of bond is formed when there exists some form of collective interactions between the (negatively…
  27. What principle states that each electron in an atom must have a different set of quantum numbers?
  28. The straight line passing through the two poles of magnet is called
  29. The force of attraction or repulsion between two magnetic poles is inversely proportional to the square…
  30. A magnetic flux of 2.5 x10^4 Wb through an area of 5 x10^4 square meters results in