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Electric Circuits

Electric Circuits
Which of the following substance when added to electrolyte promotes smooth deposition?

 Albumen.
 Glucose.
 Gelatine.
 Any of above.

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Electric Circuits
The maximum value of a current wave is 2A. If the form factor of a current wave is 1.5 and the peak factor is 2.7, find the rms value in Amperes.

 0.741 A.
 0.494 A.
 1.57 A.
 1.414 A.

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Electric Circuits
Current magnification will occur in which of the following case?

 Series resonance
 Both
 Parallel resonance
None of these

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Electric Circuits
A capacitor having a capacitance of 40 μF is connected across 250 V DC source. The charging current will be least

 initially.
 when capacitor is fully charged.
 when capacitor is half charged.
 when capacitor is almost 25% charged.

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Electric Circuits
There are two capacitors C1 and C2 in parallel , what will be their equivalent capacitance?

 (C1 + C2) / C1C2.
 C1 + C2.
 C1C2.
 (C1C2) / C1 + C2.

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

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