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Electric Circuits

Electric Circuits
Which of the following may be value of resistivity of copper?

 1.7 X 10 - 4.
 1.7 X 10 - 6.
 1.7 X 10 - 3.
 1.7 X 10 - 5.

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Electric Circuits
Disadvantages of constant k type filter

  none of these.
  both A and B.
  attenuation does not increase rapidly beyond cut off frequency.
  characteristic impedance unchanged in pass band.

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Electric Circuits
Which of the following is not a bilateral element?

 Capacitor.
 Diode.
 Resistor.
 Inductor.

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Electric Circuits
A dependent source can be

 a current source.
 a voltage source.
 both a voltage or a current source.
 neither a voltage nor a current source.

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Electric Circuits
Fall time is the time required for a pulse to decrease from 90 to ________% if its maximum values

 20
 15
 10
 5

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Electric Circuits
A series RLC circuit is connected across a 240V, 50 Hz supply. When the voltage across capacitor is 250V, a maximum current of 0.5A flows in the circuit. Find the resistance.

 100 Ohms.
 480 Ohms.
 1000 Ohms.
 500 Ohms.

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