The branch of Engineering which deals with the magnetic effect of electric current is known as

A. Magnetism

B. Electromagnetism

C. Electrical engineering

D. Electronics engineering

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  1. The conduction of electricity across the surface of a dielectric is called
  2. The force which set ups or tends to set up magnetic flux in a magnetic circuit
  3. Core materials of a good relay have _________ hysteresis loop.
  4. Who developed the electromagnetic theory of light in 1862?
  5. A permanent magnet does not exert a force on
  6. What bond is formed when one or more electrons in the outermost energy orbit of an atom are transferred…
  7. The emission of electrons from hot bodies is called
  8. The space outside the magnet where its pole have a force of attraction or repulsion on a magnetic pole…
  9. The emf induced in a coil due to the changing current of another neighboring coil is called
  10. The magnetic field of a bar magnet most closely resembles the magnetic field of
  11. If the value of 0 a conductor is 1/234 per oCa then the value of 18is
  12. The magnetic potential in a magnetic circuit can be measured in terms of
  13. The B-H curve of ________ is not a straight line.
  14. The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.
  15. As the magnetic intensity decreasesa the relative permeability of a magnetic material
  16. The unit of flux is _____ in cgs system.
  17. The induced emf in a wire loop that is moved parallel to a uniform magnetic field is
  18. The force between two magnetic poles is _____ their poles strength.
  19. The temperature coefficient of resistance of conductors is
  20. The emf produced in a wire by its motion across a magnetic field does not depend upon the
  21. The core of a transformer heats up when its primary is fed from an ac source because of
  22. When a wire loop is rotated in a magnetic field the direction of the induced emf changes one in every…
  23. Theory of ferromagnetic phenomena which assumes each atom is a permanent magnet which can turn freely…
  24. Back emf refers to the
  25. A law that states that the current in a thermionic diode varies directly with the three- halves power…
  26. A one cubic cm of copper has how many free electrons at room temperature?
  27. The idea of preventing one component from affecting another through their common electric and magnetic…
  28. Who discovered the most important electrical effects which is the magnetic effect?
  29. The relative permeability of a magnetic material is 10^5. What is its permeability?
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