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It is the reciprocal of reluctance and implies the case of readiness with which magnetic flux is developed.

A. R esistance

B. Conductance

C. Permeance

D. I nductance

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    A magnetic pole produces 5000 field lines. How much is the flux in webers? A. 50 10^-6
  2. All magnetic field originates from
  3. The electric potential across part AB of a circuit is 5 V; point A being at higher potential. If a charge…
  4. If the number of valence electrons of an atom is less than 4a the substance is called
  5. What bond is formed when electrons in the outermost energy orbits of the atoms are shared between two…
  6. When the relative permeability of a material is slightly more than 1a it is called ______ material.
  7. The electrons in the last orbit of an atom are called _______ electrons.
  8. Which of the following magnetic materials can be easily magnetized in both direction?
  9. Hydrogen is an example of a _____ material.
  10. One weber of flux is equal to _______ magnetic lines of force.
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    If the resistance of a material 2 m long and 2 m^2 in area of cross-section is 1.6 10^-8 ?a then its resistivity is
  12. If two similar charges 1 coulomb each are placed 1 m apart in aira then the force of repulsion is
  13. The property of magnetic materials of retaining magnetism after withdrawal of the magnetizing force…
  14. If the value of 0 a conductor is 1/234 per oCa then the value of 18is
  15. An effect which is generally used in the gausameter to measure flux density.
  16. What is the reluctance of a magnetic path having a length of 2x 10^-3m and crosssectional area of 2.5…
  17. A positively charged body has
  18. The magnetic field of a bar magnet most closely resembles the magnetic field of
  19. The temperature coefficient of resistance of a conductor ______ with an increase in temperature.
  20. A principle that states that only two electrons with different spins are allowed to exist in a given…
  21. The core of a transformer heats up when its primary is fed from an ac source because of
  22. Who discovered the most important electrical effects which is the magnetic effect?
  23. The diameter of a hydrogen atom is approximately ______ cm.
  24. Which of the following is a vector quantity?
  25. The temperature coefficient of resistance of conductors is
  26. Flux linkages equals
  27. Ohm's law cannot be applied to which material?
  28. Materials that have very high permeabilities (hundreds and even thousands times of that of free space)
  29. What principle states that each electron in an atom must have a different set of quantum numbers?
  30. The force between two magnetic poles is _____ the relative permeability of the medium.