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Electric Circuits

Electric Circuits
In the circuit shown in the figure, the value of Vs is 0, when I = 4 A. The value of I, when Vs = 16 V, is

 8 A.
 12 A.
 10 A.
 6 A.

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Electric Circuits
Advantage of active filter is

  both of above.
  derive high impedance load.
  do not offer gain.
  easy to tune.

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Electric Circuits
An AC voltage of 200 V at 50 Hz is applied to a coil which draws 5 A and dissipates 1000 W. The resistance and impedance of the coil respectively are

 50 Ω and 200 Ω.
 25 Ω and 5 Ω.
 40 Ω and 40 Ω.
 40 Ω and 200 Ω.

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Electric Circuits
Third pin of a 3 pin plug is thicker and longer

 for protection purpose.
 all pins are of same size.
 for designing purpose.
 none of these.

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Electric Circuits
A wire of resistance R has it length and cross - section both doubled. Its resistance will become

 2R.
 R.
 4R.
 0.5R.

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Electric Circuits
In the circuit shown in figure if I1 = 1.5 A, then I2 will be

 0.5 A.
 1.5 A.
 2 A.
 1 A.

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MORE MCQ ON Electric Circuits

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