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Which of the following is a paramagnetic material?

A. Carbon

B. Copper

C. Bismuth

D. Oxygen

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  1. One electron volt (1 eV) is equivalent to _____ joules
  2. The force between two charges placed a given distance apart ______ as the relative permittivity of the…
  3. If the relative permittivity of a material is 10a then its permittivity is
  4. What bond is formed when electrons in the outermost energy orbits of the atoms are shared between two…
  5. The force between two magnetic poles is _____ the relative permeability of the medium.
  6. If two similar charges 1 coulomb each are placed 1 m apart in aira then the force of repulsion is
  7. The hot resistance of an incandescent lamp is about _______ its cold resistance.
  8. The potential at a point due to a charge is 15 V. If the distance is times, the potential at the point…
  9. What is the cgs unit of magnetomotive force?
  10. The magnetic potential in a magnetic circuit can be measured in terms of
  11. Magnetic effects of the earth as a huge magnet with north and south poles.
  12. Electric field intensity at a point due to a given charge ______ if the relative permittivity of the…
  13. Hydrogen is an example of a _____ material.
  14. The emf produced in a wire by its motion across a magnetic field does not depend upon the
  15. The magnetic field inside a solenoid
  16. What is the main advantage of temporary magnets?
  17. Which of the following is a vector quantity?
  18. The B-H curve for ________ is a straight line passing through the origin.
  19. If a magnetic flux cuts across 200 turns at a rate of 2Wb/sa the induced voltage according to Faraday's…
  20. States that the ratio of the thermal conductivity is proportional to the absolute temperature for all…
  21. Hysteresis is a phenomenon of _________ in a magnetic circuit.
  22. Which of the following materials has the highest dielectric strength?
  23. Which of the following materials has the least hysteresis loop area?
  24. A magnetizing force of 1000 AT/m will produce a flux density of __________ i
  25. Formed when there exist distant electronic interactions between (opposite) charges present in the neighboring…
  26. Materials that have very high permeabilities (hundreds and even thousands times of that of free space)
  27. All matters (gasa liquid and solid) are composed of
  28. What is used as the dielectric material in high voltage transformers?
  29. The unit of flux density is
  30. The reluctance of a magnetic circuit varies with