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Electric Circuits

Electric Circuits
Which material has extremely large resistance?

 Semiconductor
 Insulator
None of these
 Conductor

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Electric Circuits
An electrical circuit with 10 branches and 7 nodes will have

 3 loop equations.
 7 loop equations.
  10 loop equations.
  4 loop equations.

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Electric Circuits
For balanced star load, if unbalanced line current are IR, IY, IB equal to - j10, - j10 and - j20 respectively, the neutral current will be equal to

  (-9.66 + j5) A.
  (-8.66 - j5) A.
  (8.66 + j5) A.
  (8.66 - j5) A.

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Electric Circuits
A delta connection contains three equal impedance of 60 Ω. The impedance of the equivalent star connection for each star load will be

 30 Ω.
 15 Ω.
 40 Ω.
 20 Ω.

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

 zero
 lagging
 unity
 leading

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Electric Circuits
The ratio of intensity of magnetisation to the magnetising force is known as

 relative permeability.
 susceptibility.
 none of above.
 flux density.

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MORE MCQ ON Electric Circuits

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