Biology Forums - Study Force

The principal quantum number is symbolized by the letter ______________.
 Fill in the blank(s) with correct word

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[Ques. 2] Two long parallel wires carry unequal currents in the same direction. The ratio of the currents is 3 to 1 . The magnitude of the magnetic field at a point in the plane of the wires and 10 cm from each wire is 4.0 T. What is the larger of the two currents?
 a. 5.3 A
  b. 3.8 A
  c. 4.5 A
  d. 3.0 A
  e. 0.5 A

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[Ques. 3] When the absolute magnitudes, or brightnesses, of stars are plotted against their surface temperatures or colors, we obtain a(n) ______________ diagram.
 Fill in the blank(s) with correct word

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[Ques. 4] The lowest energy level of an atom (n = 1) is called the ______________.
 Fill in the blank(s) with correct word

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[Ques. 5] Two long straight parallel wires separated by a distance of 20 cm carry currents of 30 A and 40 A in opposite directions. What is the magnitude of the resulting magnetic field at a point that is 15 cm from the wire carrying the 30-A current and 25 cm from the other wire?
 a. 51 T
  b. 33 T
  c. 72 T
  d. 64 T
  e. 46 T

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[Ques. 6] Familiar groups of stars that are part of a constellation or parts of different constellations are called ______________.
 Fill in the blank(s) with correct word

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[Ques. 7] The energy of the electron in the hydrogen atom has only certain ______________ values.
 Fill in the blank(s) with correct word

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[Ques. 8] Each of two long straight parallel wires separated by a distance of 16 cm carries a current of 20 A in the same direction. What is the magnitude of the resulting magnetic field at a point that is 10 cm from each wire?
 a. 57 T
  b. 80 T
  c. 64 T
  d. 48 T
  e. 40 T

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[Ques. 9] Eighty-eight prominent groups of stars in the sky are called the ______________.
 Fill in the blank(s) with correct word

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[Ques. 10] In common physics terminology, a particle with a negative potential energy is in a(n) potential ______________.
 Fill in the blank(s) with correct word

1)  n

2)  d

3)  Hertzsprung-Russell, or H-R

4)  ground state

5)  b

6)  asterisms

7)  discrete, or allowed

8)  d

9)  constellations

10)  well

Good timing, thanks!