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Electric Circuits

Electric Circuits
From the circuit diagram shown in question 1 find the maximum power transferred to the load.

 4.547 W.
 9 W.
 1.875 W.
 15.247 W.

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Electric Circuits
Constant K type HPF (high pass filter) having cut off frequency 12 KHz and nominal impedance Ro = 500 Ω Find shunt arm inductor L and series arm capacitance C for T and π section of HPF ?

 L = 3.316 mH, C = 0.0132 μF.
 None of these.
 L = 0.0132 mH, C = 0.0132 μF.
 L = 3.316 mH, C = 132 μF.

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Electric Circuits
A current of 4 A flows in an ac circuit when 100 V dc is applied to it whereas it takes 250 v ac to produce the same current the power factor of the circuit is

 0.85.
 1.
 10.
 0.4.

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Electric Circuits
Image impedance can be written by using short circuit impedance(Zsc)and open circuit impedance(Zoc) as

 Zsc/Zoc
 Zsc+Zoc
 Zsc-Zoc
  (Zsc . Zoc)½

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Electric Circuits
The alternative names for active power is/are

 average power.
 real power.
All of these
 true power.

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Electric Circuits
Which of the following may be the value of resistivity of copper at absolute zero in ohm-metre?

 1.56.
 6.24.
 0.020.
 3.12.

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