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Electric Circuits

Electric Circuits
Power dissipation in ideal inductor is

 A finite value
 Minimum
 Maximum
 Zero

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Electric Circuits
Disadvantages of constant k type filter

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

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Electric Circuits
Active filter consists of

 capacitor.
 op-amp.
 inductor.
 op-amp and capacitor.

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Electric Circuits
Electrolyte for silver plating is

  any of above.
  dilute sulphuric acid.
  potassium nitrate solution.
  double cyanide of silver and potassium solution.

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Electric Circuits
Which of the following has least resistivity?

 Mercury.
 Lead.
 Copper.
 Aluminium.

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Electric Circuits
Consider the following circuit : Switch is closed at t = 0 Find i(0 +)

 V / {R + (sL + 1 / Cs)}.
 (V*L) / (R*C)
 0.
 V/R.

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