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The point in a magnet where the intensity of magnetic lines of force is maximum

A. Magnetic pole

B. South pole

C. North pole

D. Unit pole

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  1. Electric field intensity at a point due to a given charge ______ if the relative permittivity of the…
  2. Which of the following is a vector quantity?
  3. The branch of Engineering which deals with the magnetic effect of electric current is known as
  4. The resistance of a material is ____________ its area of cross-section.
  5. The ratio of the total flux (flux in iron path) to the useful flux (flux in air gap)
  6. Which of the following magnetic materials can be easily magnetized in both direction?
  7. __________ is a substance of whose molecules consist of the same kind of atom.
  8. A law that states that the polarity of the induced voltage will oppose the change in magnetic flux causing…
  9. The temperature coefficient of resistance of semiconductors is
  10. The quantity of magnetism retained by a magnetic material after withdrawal of the magnetizing force…
  11. The induced emf in a wire loop that is moved parallel to a uniform magnetic field is
  12. What is the value of the absolute permittivity of air?
  13. The space outside the magnet where its pole have a force of attraction or repulsion on a magnetic pole…
  14. The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…
  15. Electrons at the outer shell are called
  16. The flux density in an air-cored coil is 10^-3 Wb/m^2. With a cast iron core of relative permeability…
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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
  18. The physical motion resulting from the forces of magnetic fields is called
  19. One farad equals
  20. A negative ion results when an atom gains an additional
  21. A magnetic circuit carries a flux iin the iron part and a fluxgin the air gap. What is the leakage coefficient?
  22. If the value of 0 a conductor is 1/234 per oCa then the value of 18is
  23. Back emf refers to the
  24. Temporary magnets are commonly employed in
  25. The temperature coefficient of resistance of conductors is
  26. Permeance is analogous to
  27. How many turns are needed to produce a magnetomotive force of 1000 A.t for a coil with 6 amperes?
  28. Which of the following has the highest permeability?
  29. When a conductor is stationary and the magnetic field is moving or changing the emf induced is called
  30. Electric lines of force leave or enter the charge surface at an angle of