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Electric Circuits

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

 1.5 A.
 2 A.
 0.5 A.
 1 A.

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Electric Circuits
If emf in a given circuit is given by e = 100 sinω0t, then maximum value of voltage and frequency will be

 100 V, 100 Hz.
 50√2 V, 100 Hz.
 100 V, 50 Hz.
 100√2 V, 100 Hz.

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Electric Circuits
The inductive reactance of an electric circuit is 200 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance?

 50 Ohms.
 200 Ohms.
 400 Ohms.
 100 Ohms.

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Electric Circuits
Air gap flux density is of the order of

  0.35 - 0.5 T.
 0.75 - 0.8 T.
  0.65 - 0.9 T.
 0.85 - 0.9 T.

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Electric Circuits
The Laplace Transform of a shifted unit step f (t) = U (t-a) is

 e-as.
 s(1-e-as).
 se-as.
 (e-as)/s.

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Electric Circuits
A current of 1 mA flows through a 1M ohm, 2 W carbon resistor. The power dissipated as heat in the resistor will be

None of these
 1 W.
 0.5 W.
 2 W.

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