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Electric Circuits

Electric Circuits
Capacitors for P.f correction are rated in

 KVA.
 KVAR.
 KV.
 KW.

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Electric Circuits
To find the initial value of a function, the highest power of S in denominator should be ---------- the highest power of S in the numerator.

 greater than
 equals to
 both a and c
 less than

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Electric Circuits
Voltage magnification will occur in which of the following case?

None of these
 Both
 Parallel resonance
 Series resonance

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Electric Circuits
2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is

 15.
 60.
 105.
 75.

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Electric Circuits
Kirchhoffs laws are valid for

  non-linear circuits only.
  linear circuit only.
  passive time invariant circuits.
  both linear and non-linear circuits.

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Electric Circuits
For finding the Z11 parameter at the input port of a two port network

 output port is short circuited.
 output port is open circuited.
 input port is open circuited.
 input port is short circuited.

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