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Electric Circuits

Electric Circuits
Which of following materials has the least resistivity ?

  Lead.
  Mercury.
  Zinc.
  Copper.

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Electric Circuits
If a pure inductor is connected across the ac source, the average power taken by the inductor is

 zero watt.
 a few watt.
 100 watt.
 maximum power.

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

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

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Electric Circuits
Ceq of two capacitors connected in series is given by

 C1 = C2.
 C1 C2 / (C1 + C2).
 C1 + C2.
 C1C2.

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Electric Circuits
In RLC series circuit if the Q factor is 1, then the damping of the system is

 Under damping
 Critical damping
 Undamping
 Over damping

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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 / 3.
 R / 2.
 R / 4.

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MORE MCQ ON Electric Circuits

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