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Electric Circuits

Electric Circuits
Active filter consists of

 op-amp.
 inductor.
 op-amp and capacitor.
 capacitor.

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

  Rectifier.
  Barrel.
  Distilled water.
  Carbon brushes.

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Electric Circuits
A constant current source supplies a electric current of 300 mA to a load of 1 KΩ. When the load changed to 100 Ω, the load current will be

 3 A.
 100 mA.
 300 mA.
 30 mA.

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Electric Circuits
Lowest current density is generally recommended for plating of

 silver.
 bronze.
 cadmium.
 chromium.

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Electric Circuits
Find the current through 5 Ohm resistor from A to B.

 -1A.
 -2A.
 1A.
 2A.

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Electric Circuits
A capacitor is charged by a constant 10 mA current sources which is turned on for 1 second. Assuming the capacitor is initially charge free; determine the charge delivered to and the power supplied by the source if the capacitor has a value of 1 mF.

 0.1C, 10MW.
 0.01C and 5W.
 0.01C, 10MW.
 0.1C, 100MW.

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