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Electric Circuits

Electric Circuits
Link in network theory refers to

  B - N + 1.
  B - N - 1.
  N - 1.
  N - B - 1.

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Electric Circuits
Advantage of active filter is

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

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Electric Circuits
If a resistor and a capacitor are connected to form series R - C circuit across a voltage source. If frequency of voltage source increases

 the current decreases.
 the current increases.
 the current remain unaltered.
 the current decreases abruptly.

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Electric Circuits
A 100 μF capacitor supplied from 3 V source with a frequency of 50 Hz. The capacitive reactance is

 15.92 Ω.
 31.84 Ω.
 7.96 Ω.
 63.68 Ω.

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Electric Circuits
If the dielectric of a capacitor is replaced by conducting material

 the capacitance value of the plate will decrease.
 the plate will get short circuited.
 the capacitor will get heated up due to eddy currents.
 the capacitor can store infinite charge.

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Electric Circuits
The capacitive reactance of an electric circuit is 50 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance?

 200 Ohms.
 25 Ohms.
 50 Ohms.
 100 Ohms.

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MORE MCQ ON Electric Circuits

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