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Electric Circuits

Electric Circuits
The form factor of sinusoidal alternating current is

 0.
 1.
 1.11.
 1.15.

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Electric Circuits
In a delta network each element has value R. The value of each element in equivalent star network will be

 R / 6.
 R / 2.
  R / 3.
 R / 4.

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Electric Circuits
When power factor angle is varying, the shape of the current locus is

 Semicircle
 Circle
 Triangle
 Straight line

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Electric Circuits
Three identical inductors are connected in delta with a 220 V, 50 Hz, 3 - φ, supply. If the phase current is 24 A, then what is the value of each of the inductance?

 0.058 H.
 None of these.
 0.049 H.
 0.029.

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Electric Circuits
Specific resistance is measured in

  ohm.
  ohm - cm.
  ohm/cm.
  mho.

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Electric Circuits
Three parallel resistive branches are connected across a DC supply. The ratio of the branch resistances are given as R1:R2:R3 :: 2:4:6. The ratio of the branch currents is

 2:4:6.
 6:3:2.
 6:4:2.
 2:3:6.

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