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Electric Circuits

Electric Circuits
A branch of a network is said to be active when it consists of one

 capacitor.
 resistor.
 voltage source.
 inductor.

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Electric Circuits
Four resistances 80 Ohm, 50 Ohm, 25 Ohm and R are connected in parallel. Current through 25 Ohm resistance is 4A. Total current of supply is 10A. The value of R will be

 66.66.
 76.66.
 40.25.
 36.36.

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Electric Circuits
Four capacitors each of 40 µF are connected in parallel, the equivalent capacitance of the system will be

 5 µF
 160 µF
 10 µF
 40 µF

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Electric Circuits
In series RLC circuit what is the power factor just above the resonance frequency?

 Zero
 Unity
 Lagging
 Leading

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The current in R is

 10.16 A.
 5.08 A.
 1.27 A.
 2.54 A.

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Electric Circuits
Kirchhoff’s current law is used for

 nodal analysis.
 finding equivalent resistance.
 loop analysis.
 representing a current source.

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MORE MCQ ON Electric Circuits

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