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Electric Circuits

Electric Circuits
Internal resistance of ideal voltage source is

 zero
 100 ohms
 infinite
 finite

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Electric Circuits
The norton equivalent of the circuit shown in the figure is

 0.75A, 5/6 Ohm
 1A, 5/6 Ohm
 0.75 A, 1.5 Ohm
 1A, 1.5 Ohm

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Electric Circuits
Two resistors R1 and R2 give combined resistance of 4.5 Ohm when connected in series and 1 Ohm when in parallel, the resistances are

 1.25 Ohm and 3.25 Ohm.
 2.2 Ohm and 2.3 Ohm.
 2 Ohm and 2.5 Ohm.
 1.5 Ohm and 3 Ohm.

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Electric Circuits
In steady state condition capacitor acts as a

 current source
 short circuit
 open circuit
 voltage source

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Electric Circuits
If the length of a wire of resistance R is uniformly stretched to n times its original value, what will be its new resistance

  n2 / R.
  R / n2.
  n2R.
  nR .

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Electric Circuits
Final value theorem is not applicable for which of the following?

 unstable systems
 Both 2 and 3
 stable systems
 marginally stable systems

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MORE MCQ ON Electric Circuits

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