The force of attraction or repulsion between two magnetic poles is inversely proportional to the square of the distance between them. This is known as

A. Newton's first law

B. Faraday's first law of electromagnetic induction

C. Coulomb's first law

D. Coulomb's second law

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  1. The permeability of permalloy is
  2. The induced emf in a wire loop that is moved parallel to a uniform magnetic field is
  3. Permeance is analogous to
  4. Another term for corona discharge.
  5. The emf induced in a coil due to the changing current of another neighboring coil is called
  6. If the right handed bottle-opener cork screw is assumed to be along the conductor so as to advance in…
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    A magnetic pole produces 5000 field lines. How much is the flux in webers? A. 50 10^-6
  8. The straight line passing through the two poles of magnet is called
  9. Two similar polesa each 1Wba placed 1 m apart in air will experience a repulsive force of
  10. What is the unit of magnetomotive force?
  11. A principle that states that only two electrons with different spins are allowed to exist in a given…
  12. Refers to the non- metallic materials that have the ferromagnetic properties of iron.
  13. Residual magnetism refers to the flux densitya which exists in the iron core when the magnetic field…
  14. Hysteresis refers to the ______ between flux density of the material and the magnetizing force applied.
  15. The diameter of a hydrogen atom is approximately ______ cm.
  16. Why is it that the magnitude of magnetomotive force required for air gap is much greater than that required…
  17. A one cubic cm of copper has how many free electrons at room temperature?
  18. The electric flux density is a ________ quantity.
  19. It is the reciprocal of reluctance and implies the case of readiness with which magnetic flux is developed.
  20. Permeability means
  21. What bond is formed when one or more electrons in the outermost energy orbit of an atom are transferred…
  22. A law that states that the current in a thermionic diode varies directly with the three- halves power…
  23. States that the ratio of the thermal conductivity is proportional to the absolute temperature for all…
  24. The force between two magnetic poles is _____ the relative permeability of the medium.
  25. The magnetic flux through a coil changes. This results to the induced emf acting in a direction as to
  26. Flux density is measured in
  27. A t/m is a unit of
  28. Bonding of atoms that is due to the force of attraction between positive ions and a group of negative…
  29. This paper does not exhibit electricity because it contains the same number of
  30. The electrons in the last orbit of an atom are called _______ electrons.