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Electric Circuits

Electric Circuits
In which braking back emf exceeds supply voltage?

  Plugging.
  Dynamic.
  Regenerative.
  None of these.

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

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

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Electric Circuits
In steady state condition capacitor acts as a

 open circuit
 short circuit
 current source
 voltage source

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Electric Circuits
In the cauer-1 form of LC network---------is series element and --------is shunt element respectively?

 C and L
 L and L
 L and C
 C and C

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Electric Circuits
A capacitor is connected to supply with switch and the switch is connected between capacitor and supply. Initially switch is open at time zero, and then switch is closed. Then how capacitor behaves at time t = 0+?

 dielectric losses decreases.
 short circuit.
 dielectric losses increases.
 open circuit.

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Electric Circuits
Consider the following circuit. What is the value of i ?

 6 A.
 - 5 A.
 12 A.
  5 A.

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