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The simplest type of atom to exist is the ______ atom.

A. Helium

B. Hydrogen

C. Boron

D. Oxygen

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  1. If the distance between two magnetic poles decreases by 2 timesa the force between them
  2. What bond is formed when one or more electrons in the outermost energy orbit of an atom are transferred…
  3. Amorphous solid is also called
  4. The electric potential across part AB of a circuit is 5 V; point A being at higher potential. If a charge…
  5. How many turns are needed to produce a magnetomotive force of 1000 A.t for a coil with 6 amperes?
  6. Which of the following materials has the highest dielectric strength?
  7. The magnetic field inside a solenoid
  8. The electric field intensity between the parallel plate air capacitor is 20 N/C. If an insulating slab…
  9. The simplest type of atom to exist is the ______ atom.
  10. What principle states that each electron in an atom must have a different set of quantum numbers?
  11. The air space between poles of magnets
  12. The phenomenon that when an electric current passes through an anisotropic crystala there is an absorption…
  13. Which element has four valence electrons?
  14. A length of wire has a resistance of 10 ohms. What is the resistance of a wire of the same material…
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    When the current flowsa the magnetic field . conductor is in what direction?
  16. Formed when there exist distant electronic interactions between (opposite) charges present in the neighboring…
  17. If the number of valence electrons of an atom is exactly 4a then the substance is called
  18. What is the measure of the density and sign of the electric charge at a point relative to that at some…
  19. The magnetic flux of 2000 lines is how many Maxwells?
  20. All matters (gasa liquid and solid) are composed of
  21. What bond is formed when electrons in the outermost energy orbits of the atoms are shared between two…
  22. The ratio of the total flux (flux in iron path) to the useful flux (flux in air gap)
  23. One that has magnetic poles produced by internal atomic structure with no external current necessary
  24. Calculate the permeability (in T/A. t/m) of a magnetic material that has a relative permeability of…
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    If the resistance of a material 2 m long and 2 m^2 in area of cross-section is 1.6 10^-8 ?a then its resistivity is
  26. The force between two magnetic poles varies with the distance between them. The variation is ______…
  27. Magnetic fields do not interact with
  28. The B-H curve of ________ is not a straight line.
  29. What is the SI unit of magnetic flux?
  30. Why is it that the magnitude of magnetomotive force required for air gap is much greater than that required…