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Electric Circuits

Electric Circuits
To apply reciprocity theorem response to excitation ratio is

 Mho.
 Either Ohm or Mho.
 Ohm.
 No units.

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Electric Circuits
A circuit with resistor, inductor, capacitor in series is resonant of 50 Hz. If all the values are now doubled, the new resonant frequency is

 2f0.
 still f0.
 f0 / 4.
 f0 / 2.

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Electric Circuits
Flux in a magnetic circuit can be compared in an electric circuit to

 resistance.
 current.
 voltage.
 inductance.

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Electric Circuits
A parallel plate capacitor contain there dielectric layers of 1, 2 and 3 respectively and thickness of dielectric layers are 0.2 mm, 0.3 mm and 0.4 mm respectively. If area of plate is 20 cm2. What is the value of capacitance?

 36.6 pF.
 None of them.
 32 pF.
 30 pF.

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Electric Circuits
A variable capacitance is one whose capacitance

 can be changed manually or by mechanical force.
 changes with voltage.
 changes with temperature.
 changes with time.

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Electric Circuits
Advantage of active filter is

  do not offer gain.
  both of above.
  derive high impedance load.
  easy to tune.

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MORE MCQ ON Electric Circuits

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