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Electric Circuits

Electric Circuits
Reciprocity condition for h parameters is

 h11h22 - h21h12 = 0.
 h12 = h21.
 h12 = h21.
 h12 = - h21.

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Electric Circuits
Disadvantages of constant k type filter

  none of these.
  both A and B.
  attenuation does not increase rapidly beyond cut off frequency.
  characteristic impedance unchanged in pass band.

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

 4 msec
 2 msec
 4 μsec
 2 μsec

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Electric Circuits
For a band pass filter, cut off frequency of the low pass filter should be ___ of the high pass filter?

 greater than
 equals to
 less than
All of these

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Electric Circuits
The laplace transform of the fuction f(t) = t is

 1/s2.
 s2.
 s.
 1/s.

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Electric Circuits
What is apparent power in AC operation?

 Product of voltage and current at no load.
 Product of voltage and current at full load.
 Product of rms voltage and rms current.
 Product of voltage and current.

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