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Electric Circuits

Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The current in R is

 10.16 A.
 2.54 A.
 1.27 A.
 5.08 A.

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Electric Circuits
If two point charges are denoted by + Q and - Q and distance between this charges is d, then the dipole moment P equal to

  Q / d2.
  Q2 × d.
  Q × d.
  Q2 / d.

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Electric Circuits
Mesh analysis is applicable for

 non planar networks.
 both planar and non planar networks.
 planar networks.
 neither planar and non planar networks..

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Electric Circuits
A 3 – φ delta connected symmetrical load consumes P Watts of power from a balanced supply. If the same load is connected in star to the same supply then what is the power consumption?

 P/3.
 √3P.
 P.
 3P.

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Electric Circuits
Which of the following elements is/are called dynamic element/s?

 L.
 C.
 R.
 Both L and C.

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Electric Circuits
If the measured value of a capacitor is 205.3µF and true value is 201.4µF the percentage relative error is

 1.89%
 1.94%
 39.00%
 25.64%

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