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Electric Circuits

Electric Circuits
The capacitive reactance of a capacitor of (1 / 2μF) F at 103 Hz is

 10 3 μF.
 10- 3 μF.
 10- 6 μF.
 10 6 μF.

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Electric Circuits
A capacitor having a mica dielectric εR = 6, a plate area of a 10 inches2 and a separation 0.01 inch. Find the value of C

 0 F.
 1.349 nF.
 1.349 F.
 1.349 μF.

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Electric Circuits
In the circuit shown below if I = 2 A then find V?

 5 V.
 1 V.
 2 V.
 3 V.

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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

 20 Ω.
 40 Ω.
 15 Ω.
 30 Ω.

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Electric Circuits
A 10 Ohm resistor has power rating of 1W. Find the maximum current rating.

 1 A.
 0.1 A.
 0.316 A.
 0.01 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 × d.
  Q2 / d.
  Q / d2.
  Q2 × d.

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