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Electric Circuits

Electric Circuits
What will be the rms value of rectangular wave with amplitude 10 V?

 5√2 V.
 10 V.
 7.7 V.
 11.2 V.

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Electric Circuits
Condition of reciprocity in Y-parameter representation is

 Y12 = Y22.
 Y12 = Y21.
 Y11 = Y12.
 Y11 = Y22.

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

 s.
 s2.
 1/s2.
 1/s.

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Electric Circuits
The active and reactive power in an AC circuit are 10W and 20VAR respectively. What is the power factor?

 0.577.
 1.
 0.866.
 0.5.

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Electric Circuits
Basic cut set matrix consists of

 one branch.
 no branches.
 2 branch.
 any number of branches.

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Electric Circuits
In above question, if circuit efficiency is 90 %. What will be output power ?

  37.3 kW.
  40 kW.
  30 kW.
  35.6 kW.

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