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Electric Circuits

Electric Circuits
A 10 Ohm resistor has power rating of 1W. Find the maximum current rating.

 0.1 A.
 1 A.
 0.316 A.
 0.01 A.

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Electric Circuits
An ideal constant voltage source has _______________ internal impedance whereas a constant current source has ____________ internal impedance.

 infinite, zero
 zero, infinite
 zero, zero
 infinite, infinite

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

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

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Electric Circuits
Mesh analysis is prefered when loops are------nodes

 equals to
 less than
 any of the above
 greater than

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Electric Circuits
In delta connected circuit when one resistor is open, then power will be

 0.
 increased by factor of 3.
  remain unchanged.
 reduced by the factor of 3.

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Electric Circuits
A current of 4 A flows in an ac circuit when 100 V dc is applied to it whereas it takes 250 v ac to produce the same current the power factor of the circuit is

 0.85.
 10.
 1.
 0.4.

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