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Electric Circuits

Electric Circuits
In series RLC circuit what is the power factor just above the resonance frequency?

 Leading
 Lagging
 Zero
 Unity

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Electric Circuits
A wire of resistance R has it length and cross - section both doubled. Its resistance will become

 R.
 4R.
 2R.
 0.5R.

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Electric Circuits
To obtain a high value of capacitance, the permittivity of dielectric medium should be

 unity
 low
 zero
 high

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Electric Circuits
Three capacitors each of capacity C are given. The resultant capacity (2/3) C can obtained by using them

 all in series.
 two in parallel and third in series with this combination.
 all in parallel.
 two in series and third in parallel across this combination.

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Electric Circuits
By which of the following elements transients will not occur?

 L
All of these
 R
 C

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Electric Circuits
Final value theorem is not applicable for which of the following?

 Both 2 and 3
 marginally stable systems
 unstable systems
 stable systems

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MORE MCQ ON Electric Circuits

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