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What is the diameter of an atom?

A. About 10^-10 m

B. About 10^-10 cm

C. About 10^-10 mm

D. About 10^-10 m

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  1. What is the other name for dielectric strength?
  2. Which of the following is a natural magnet?
  3. Defined as the ratio of the volume occupied by the atoms or ions in a unit cell divided by the volume…
  4. The force of attraction or repulsion between two magnetic poles is directly proportional to their strengths.
  5. The physical motion resulting from the forces of magnetic fields is called
  6. Who developed the electromagnetic theory of light in 1862?
  7. Used to maintain strength of magnetic field
  8. What is the SI unit of conductance?
  9. The temperature coefficient of resistance of semiconductors is
  10. If the value of 25 of a conductor is 1/230 per oCa then the value of 0is
  11. Referred to as the specific reluctance of a material
  12. The direction of force o a current carrying conductor placed in a m found by
  13. Defined as a closed path in which magnetic induction or flux flows
  14. Bonding of atoms that is due to the force of attraction between positive ions and a group of negative…
  15. Paramagnetic substance has a relative permeability of
  16. The phenomenon by which a subtracts pieces of iron
  17. The tiniest element of matter
  18. One ampere- turn is equivalent to _____ gilberts
  19. If two similar charges 1 coulomb each are placed 1 m apart in aira then the force of repulsion is
  20. The uncharged particles which have no effect on its atomic charge.
  21. The relation between absolute permittivity of air ( 0)a absolute p and velocity of light (c) is given…
  22. Who demonstrated the theory of electromagnetic induction in 1831?
  23. Formed when there exist distant electronic interactions between (opposite) charges present in the neighboring…
  24. The core of a magnetic equipment uses a magnetic material with
  25. A current if flowing east along a power line. If the earth's field is neglecteda the direction of the…
  26. The space outside the magnet where its pole have a force of attraction or repulsion on a magnetic pole…
  27. Magnetic intensity is a
  28. The hot resistance of an incandescent lamp is about _______ its cold resistance.
  29. All magnetic field originates from
  30. __________ is a substance of whose molecules consist of the same kind of atom.