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A 6- V battery is connected across a solenoid of 100 turns having a resistance of 2 ?a Calculate the number of ampere turns?

A.

B.

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  1. If the right handed bottle-opener cork screw is assumed to be along the conductor so as to advance in…
  2. Calculate the permeability (in T/A. t/m) of a magnetic material that has a relative permeability of…
  3. The property of a material which opposes the creation of magnetic flux in it
  4. All magnetic field originates from
  5. What is the unit of reluctance?
  6. A commercial alloy of aluminum nickela and iron with cobalta copper and titanium added to produce about…
  7. A good conductor has how many valence electrons?
  8. Used to maintain strength of magnetic field
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    A magnetic pole produces 5000 field lines. How much is the flux in webers? A. 50 10^-6
  10. The temperature coefficient of resistance of a conductor ______ with an increase in temperature.
  11. What is the practical unit of electrical energy?
  12. The unit of flux is _____ in cgs system.
  13. A negative ion results when an atom gains an additional
  14. A factor used to correct for the electrostatic forces of the more distant ions in an ionic solid.
  15. The ratio of the permeability of material to the permiabiity of air or vacuum.
  16. When the relative permeability of a material is slightly less than 1a it is called _____ material.
  17. Magnetic effects of the earth as a huge magnet with north and south poles.
  18. The resistivity of a conductor ___________ with an increase in temperature.
  19. The conduction of electricity across the surface of a dielectric is called
  20. Hysteresis loss can be reduced by one of the following.
  21. Materials that have very high permeabilities (hundreds and even thousands times of that of free space)
  22. The quantity 10^6 maxwells is equivalent to one
  23. One that has magnetic poles produced by internal atomic structure with no external current necessary
  24. How is mutual inductance between two coils decreased?
  25. A length of wire has a resistance of 10 ohms. What is the resistance of a wire of the same material…
  26. Permanent magnets can be found in
  27. The electric flux density is a ________ quantity.
  28. The core of a transformer heats up when its primary is fed from an ac source because of
  29. Which of the following is a paramagnetic material?
  30. Three charges of +5 Ca -6 C and +9 C are placed inside a sphere. What is the total flux passing through…