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Electric Circuits

Electric Circuits
In active filter which element is absent?

 Inductor.
 Capacitor.
 Both of above.
 Resistor.

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Electric Circuits
For the network shown below when I = 0, V = 20 V and when R = 0, I = 10 A. If now R = 3 Ω what is the value of the current I?

 4 A.
 10 A.
 6 A.
 5 A.

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Electric Circuits
The electrical conductivity of metal is typically of the order of (in ohm - m)

 10 - 4.
 105.
 107.
 10 - 6.

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Electric Circuits
Common impurity in battery electrolyte is

 lead sulfate.
 dust.
 iron.
 sodium chloride.

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Electric Circuits
Which of the following is the heaviest?

 Electron.
 Atom.
 Proton.
 Molecule.

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Electric Circuits
Which of following materials has the least resistivity ?

  Zinc.
  Mercury.
  Lead.
  Copper.

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MORE MCQ ON Electric Circuits

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