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Electric Circuits

Electric Circuits
Which of the following has no units?

 Magnetic susceptibility
 Permittivity
 Permeability
 Moment of a magnet

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Electric Circuits
R1 = 36 Ω and R2 = 75 Ω, each having tolerance of ±5% are connected in series. The value of resultant resistance is

 111 ± 2.77 Ω.
  111 ± 0 Ω.
 111 ± 7.23 Ω.
  111 ± 5.55 Ω.

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Electric Circuits
Highest current density is usually recommended for

  bronze plating.
  tin plating.
  chromium plating.
  cadmium plating.

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Electric Circuits
An electric field line and an equipotential surface are

 inclined at any angle.
 always perpendicular.
 always parallel.
 none of above.

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Electric Circuits
Which of the following ABCD parameters is unit less?

 A and C.
 A and B.
 B and C.
 A and D.

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Electric Circuits
A particular current is made up of two component : a 10 A and a sine wave of peak value 14.14 A. The average value of current is

 10 A.
 zero.
 14.14 A.
 24.14 A.

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