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The process by which an emf and hence current is generated or induced in a conductor when there is a change in the magnetic flux linking the conductor is called

A. Electromagnetic induction

B. Mutual induction

C. Faraday's law

D. Electromagnetic interference

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  1. The ability of a mechanically stressed ferromagnetic wire to recognize rapid switching of magnetization…
  2. When the relative permeability of a material is slightly less than 1a it is called _____ material.
  3. What is the diameter of an atom?
  4. Electric field intensity at a point is numerically equal to ________ at that point.
  5. Who discovereda the relationship between magnetism and electricity that serves as the foundation for…
  6. One oersted (Oe) is equivalent to _____ Gb/cm.
  7. Formed when there exist distant electronic interactions between (opposite) charges present in the neighboring…
  8. Temporary magnets are commonly employed in
  9. The direction of force o a current carrying conductor placed in a m found by
  10. Defined as the flux density produced in it due to its own induced magnetism
  11. The mass of proton is __________ the mass of an electron.
  12. Which of the following is a vector quantity?
  13. Refers to the non- metallic materials that have the ferromagnetic properties of iron.
  14. The force between two magnetic poles is _____ the relative permeability of the medium.
  15. One that has magnetic poles produced by internal atomic structure with no external current necessary
  16. The ratio of the permeability of material to the permiabiity of air or vacuum.
  17. Defined as the ratio of the volume occupied by the atoms or ions in a unit cell divided by the volume…
  18. When a wire loop is rotated in a magnetic field the direction of the induced emf changes one in every…
  19. The evaporation of electrons from a heated surface is called
  20. The resistivity of a conductor ___________ with an increase in temperature.
  21. A permanent magnet does not exert a force on
  22. The phenomenon by which a subtracts pieces of iron
  23. What is the cgs unit of magnetomotive force?
  24. A law that states that the current in a thermionic diode varies directly with the three- halves power…
  25. The space outside the magnet where its pole have a force of attraction or repulsion on a magnetic pole…
  26. A magnetizing force of 1000 AT/m will produce a flux density of __________ i
  27. If the magnetic material is located within a coil through which alternating current (60 Hz frequency)…
  28. Which of the following has the highest permeability?
  29. What is the main advantage of temporary magnets?
  30. What is the typical saturation flux density for most magnetic materials?