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Electric Circuits

Electric Circuits
For ideal tank circuit what is the value of dynamic impedance?

 0
 Both
 ∞
None of these

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Electric Circuits
The maximum value of a current wave is 2A. If the form factor of a current wave is 1.5 and the peak factor is 2.7, find the rms value in Amperes.

 1.414 A.
 0.741 A.
 0.494 A.
 1.57 A.

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Electric Circuits
What is represented by the hypotenuse of impedance triangle?

 Reactance drop.
 Apparent power.
 Resistance drop.
 Impedance drop.

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Electric Circuits
In a delta network each element has value R. The value of each element in equivalent star network will be

 R / 6.
 R / 2.
 R / 4.
  R / 3.

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Electric Circuits
The term trickle charge is associated with

 nickel iron battery.
 silver zinc battery.
 dry cell.
 lead acid battery.

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The voltage drop across R is

 24.4 V .
  50.8 V.
 40.8 V.
  30.6 V.

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