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Electric Circuits

Electric Circuits
Link in network theory refers to

  B - N + 1.
  N - 1.
  N - B - 1.
  B - N - 1.

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The phase angle of current in respect of supply voltage will be

 20.2o.
 28.8o.
 32.1o.
 40.4o.

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Electric Circuits
Silver coating is provided for

  all of above.
  bearing surfaces.
  decorative purpose.
  protective purpose.

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Electric Circuits
The capacitive reactance of a capacitor of (1 / 2μF) F at 103 Hz is

 10 3 μF.
 10 6 μF.
 10- 6 μF.
 10- 3 μF.

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Electric Circuits
Which of the following is the heaviest?

 Proton.
 Electron.
 Molecule.
 Atom.

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Electric Circuits
2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is

 105.
 60.
 15.
 75.

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