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Electric Circuits

Electric Circuits
Which of the following has positive temperature coefficient ?

  Gold.
  Germanium.
  Paper.
  Rubber.

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Electric Circuits
Which part of magnetic path requires largest mmf?

 Coil.
 Inductance.
 Air gap.
 Core.

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Electric Circuits
Kirchhoffs laws are valid for

  both linear and non-linear circuits.
  passive time invariant circuits.
  linear circuit only.
  non-linear circuits only.

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Electric Circuits
From the given figure find the R3

 25 mili ohm
 25 ohm
 25 mega ohm
 25 kilo ohm

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Electric Circuits
A voltage of v = 100 sin (wt + π/3) is applied to pure resistor of 30 Ohm. What is the RMS value of current is

 4.71.
 5.77.
 2.36.
 1.92.

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Electric Circuits
The unit of electric displacement vector is

 Ampere-m.
 C/m.
 C/m2.
 C - m.

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MORE MCQ ON Electric Circuits

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