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Electric Circuits

Electric Circuits
Which material has extremely large resistance?

 Conductor
 Semiconductor
 Insulator
None of these

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Electric Circuits
From the circuit diagram shown in question 1 find the thevnin voltage.

 3 V.
 1.5 V.
 15 V.
 5 V.

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Electric Circuits
What is the dielectric material used in precision small value capacitor and capacitor used in radio frequency circuits?

 Vacuum, air.
 Glass.
 Oil impregnated paper.
 Titanium oxide.

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Electric Circuits
A 50 μF capacitor is charged to retain 10 MJ of energy by a constant charging current of 1 A. Determine the voltages across the capacitor?

 60 V.
 30 V.
 50 V.
 20 V.

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Electric Circuits
A 3 wire, 3 - φ supply feeds a load consisting of three equal resistors. By how much is the load reduced if one of the resistors be removed when the load is in star?

 66.66 % of the original load.
 50 % of the original load.
 25 % of the original load.
 33.33 % of the original load.

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Electric Circuits
In which of the following oscillations are not present?

 Under damping
 Both 2 and 3
 Over damping
 Critical damping

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MORE MCQ ON Electric Circuits

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