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Electric Circuits

Electric Circuits
A capacitor carries a charge of 0.3 C at 20 V. Its capacitance is

 1.5 μF.
 15 μF.
 0.015 F.
 1.5 F.

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Electric Circuits
A balanced delta connected load has an impedance of 9∠30o Ω per phase. What is the impedance per phase of its equivalent star?

None of these
 27∠30o Ω
 30∠30o Ω.
 3∠30o Ω.

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Electric Circuits
What is form factor?

 Average value / Peak value.
 Average value / R.M.S. value.
  R.M.S. value / Average value.
 Instantaneous value / Average value.

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Electric Circuits
Total power consumed in the circuit below is 10 W. Find X.

 None of these.
  2 A.
 3 A.
 1 A.

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Electric Circuits
Electric field intensity ( E ) at any point in an electric field is equal to

 ( potential gradient )1/3.
 ( potential gradient )1/2.
 potential gradient.
 ( potential gradient )2.

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Electric Circuits
Which of the following carbon coded resistor has value of 10k ohm with 20% tolerance?

 Brown, black, orange and no tolerance band.
 Red, red, green and silver stripes.
 Yellow, violet, yellow and silver stripes.
 Orange, orange, black and gold stripes.

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