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Electric Circuits

Electric Circuits
In RLC parallel circuit if current through capacitor and inductor is equal. Then What is the power factor?

 unity
 leading
 lagging
 zero

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Electric Circuits
Which of the following is the heaviest?

 Electron.
 Atom.
 Proton.
 Molecule.

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Electric Circuits
Which material has extremely large resistance?

None of these
 Semiconductor
 Insulator
 Conductor

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Electric Circuits
Say A point has an absolute potential of 40 V and point B has an absolute potential of - 10 V, then what will be the value of VBA ?

  30 V.
  - 50 V.
  none of above.
 50 V.

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Electric Circuits
Time constant of RC series circuit is

 2RC
 L/R
 2L/R
 RC

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Electric Circuits
Two resistances R1 and R2 give combined resistances 4.5 Ω and 1 Ω when they are connected in series and parallel respectively. What would be the values of these resistances?

  3 Ω and 6 Ω.
 6 Ω and 9 Ω.
  1.5 Ω and 3 Ω.
 3 Ω and 9 Ω.

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