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Electric Circuits

Electric Circuits
In RLC parallel network R = 2 Ohm, L = 2mH and C = 1μF. Find the value of time constant?

 4 msec
 4 μsec
 2 μsec
 2 msec

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Electric Circuits
The synchronous speed for the seventh space harmonic mmf wave of 8 pole, 50 Hz induction machine will be

 107.14 rpm in reverse direction.
 5250 rpm in reverse direction.
 5250 rpm in forward direction.
 107.14 rpm in forward direction.

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Electric Circuits
Specific resistance is measured in

  mho.
  ohm.
  ohm - cm.
  ohm/cm.

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Electric Circuits
If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit increase if frequency of voltage source increases?

 Z and I.
 VL and Z.
 VL and I.
 VL and VR.

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Electric Circuits
Which of the following theorems can be applied to any network- linear or nonlinear, active or passive, time variant or time invariant?

 Norton Theorem.
 Tellegen theorem.
 Thevnin theorem.
 Millman theorem.

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Electric Circuits
Cascade connection of two port networks is analyzed through

 Y parameters.
 ABCD parameters.
 Z parameters.
 h parameters.

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