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Electric Circuits

Electric Circuits
A two port network is defined by the relation The value of Z12 is

 3.
 3/41.
 -3.
 2/31.

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Electric Circuits
Which of following capacitors has relatively shorter shelf life?

 Paper.
 both (B) and (C) above.
 Glass.
 Electrolytic.

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Electric Circuits
A 60 Hz frequency voltage would cause a bulb to turn on and off

 60 times per second.
 70 times per second.
 80 times per second.
 120 times per second.

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Electric Circuits
The indication of the state of charge of a battery is best given by

 specific gravity of electrolyte.
 level of electrolyte.
 temperature of electrolyte.
 colour of electrolyte.

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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?

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

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Electric Circuits
Active filter consists of

 inductor.
 op-amp.
 capacitor.
 op-amp and capacitor.

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MORE MCQ ON Electric Circuits

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