The phenomenon by which a magnetic substance becomes a magnet when it is place near a magnet

A. Magnetic effect

B. Magnetic phenomenon

C. Magnetic induction

D. Electromagnetic induction

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  1. Bonding of atoms that is due to the force of attraction between positive ions and a group of negative…
  2. Whenever a flux inking a coil or current changesa an emf is induced in it. This is known as
  3. The resistivity of a conductor ___________ with an increase in temperature.
  4. The physical motion resulting from the forces of magnetic fields is called
  5. The force between two magnetic poles is _______ their pole strengths.
  6. Permeance of a magnetic circuit is _________ the cross-sectional area of the circuit.
  7. The magnetic field around the conductor is determined by the
  8. The contribution to the ionization in an ionization chamber by electrons liberated from t he walls.
  9. If the number of valence electrons of an atom is more than 4a the substance is called
  10. A law relating between the magnetic and electric susceptibilities and the absolute temperatures which…
  11. The magnetic flux through a wire loop in a magnetic field does not d
  12. The temperature coefficient of resistance of eureka is
  13. Electron is a Greek word for
  14. Defined as a closed path in which magnetic induction or flux flows
  15. The force acting on a unit n- pole placed at that point is called
  16. Materials whose permeabilities are slightly greater than that of free space
  17. It is the reciprocal of reluctance and implies the case of readiness with which magnetic flux is developed.
  18. If the solenoid is gripped by the right hand with the fingers pointing the direction of current flowa…
  19. The magnitude of the induced emf in a coil is directly proportional to the rate of change of flux linkages.…
  20. Whenever a conductor cuts magnetic fluxa an emf is induced in it. This is known as
  21. One of the common application of an air- cored choke.
  22. What is the unit of magnetomotive force?
  23. The point in a magnet where the intensity of magnetic lines of force is maximum
  24. Electric field intensity at a point due to a given charge ______ if the relative permittivity of the…
  25. What is another name for relative permittivity?
  26. One weber of flux is equal to _______ magnetic lines of force.
  27. What is the value of the absolute permittivity of air?
  28. Who discovered superconductivity in 1911?
  29. If you hold the conductor with right hand so that the stretched thumb points in the direction of the…
  30. If on looking at any one end of a solenoid; the direction of current flow is found to be clockwise then…