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If you hold the conductor with right hand so that the stretched thumb points in the direction of the currenta then encircling fingers will give the direction of magnetic lines of force round the conductor. This is known as

A. Left hand cork screw rule

B. Right hand cork screw rule

C. Left hand rule

D. Right hand rule

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  1. The total number of magnetic lines of force in a magnetic field is called
  2. Hydrogen is an example of a _____ material.
  3. If the value of 25 a conductor is 1/255 per oCa then the value of 20is
  4. A magnetic flux of 2.5 x10^4 Wb through an area of 5 x10^4 square meters results in
  5. The magnetic materials should have a large hysteresis loss for one of the following applications.
  6. Hysteresis loss can be reduced by one of the following.
  7. A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing…
  8. The relative permeability of a magnetic material is 10^5. What is its permeability?
  9. A germanium atom has an atomic weight of72. How many neutrons are there?
  10. The force between two charges placed a given distance apart ______ as the relative permittivity of the…
  11. The core of a magnetic equipment uses a magnetic material with
  12. The amount of magnetizing force to counter balance the resid magnetic material is referred to as
  13. If the number of valence electrons of an atom is exactly 4a then the substance is called
  14. Refers to the non- metallic materials that have the ferromagnetic properties of iron.
  15. When the ferromagnetic substance is inserted in a current- carrying solenoida the magnetic field is
  16. Mmf in a magnetic circuit corresponds to _____ in an electric circuit
  17. Hysteresis refers to the ______ between flux density of the material and the magnetizing force applied.
  18. One that has magnetic poles produced by internal atomic structure with no external current necessary
  19. The electrons in the last orbit of an atom are called _______ electrons.
  20. When a wire loop is rotated in a magnetic field the direction of the induced emf changes one in every…
  21. Defined as a closed path in which magnetic induction or flux flows
  22. One coulomb of charge consists of ________ electrons.
  23. A positively charged body has
  24. Which of the following is a vector quantity?
  25. Under ordinary conditionsa a body is considered
  26. What type of bond is formed when there exists some form of collective interactions between the (negatively…
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    A magnetic pole produces 5000 field lines. How much is the flux in webers? A. 50 10^-6
  28. Materials whose permeabilities are slightly greater than that of free space
  29. The ratio of the total flux (flux in iron path) to the useful flux (flux in air gap)
  30. The current of electric circuit is analogous to which quantity of a m