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Electric Circuits

Electric Circuits
For Norton’s equivalent circuit

 Isc = Voc Req.
 Voc = Req /Isc.
 Voc = Isc / Req.
 Isc = Voc / Req.

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Electric Circuits
Four bulbs of 40 W each are connected in series with a battery across them, which of the following statement is true?

 The voltage across each bulb is not same.
None of these
 The current through each bulb is same.
 The power dissipation in each bulb is not same.

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Electric Circuits
If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit decrease if frequency of voltage source increases?

 VL and Z.
 Z and I.
 VR and I.
 VL and VR.

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Electric Circuits
Silver coating is provided for

  all of above.
  decorative purpose.
  bearing surfaces.
  protective purpose.

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Electric Circuits
Electric flux is proportional to

 resistivity of medium.
 potential difference between electrodes.
 rate of change of potential difference.
 rate of change of current.

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Electric Circuits
A 6 V lead acid battery has an internal resistance of 0.01 Ω. How much current will flow when the battery is short circuited?

 600 A.
 6 A.
 100 A.
 1 A.

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MORE MCQ ON Electric Circuits

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