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Electric Circuits

Electric Circuits
Electro-chemical equivalent is usually expressed in

  mg per kVA.
  mg per kW.
  mg per volt.
  mg per coulomb.

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Electric Circuits
If the three colour bands of a resistor are grey, violet and gold, what is the value of the resistor?

 6.7 ohms.
 7.7 ohms.
 9.7 ohms.
 8.7 ohms.

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Electric Circuits
By which of the following elements transients will not occur?

 R
 L
All of these
 C

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Electric Circuits
A parallel plate capacitor contain there dielectric layers of 1, 2 and 3 respectively and thickness of dielectric layers are 0.2 mm, 0.3 mm and 0.4 mm respectively. If area of plate is 20 cm2. What is the value of capacitance?

 36.6 pF.
 30 pF.
 32 pF.
 None of them.

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Electric Circuits
If a function is shifted by 'T', then it is correctly represented as

 f (t-T) u (t).
 f (t) u (t).
 f (t-T) u (t-T).
 f (t) u (t-T).

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Electric Circuits
Which of following is invariably seen in an electroplating plant?

  Carbon brushes.
  Distilled water.
  Rectifier.
  Barrel.

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