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Electric Circuits

Electric Circuits
The alternative names for active power is/are

 real power.
All of these
 average power.
 true power.

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Electric Circuits
A series RLC circuit is connected across a 240V, 50 Hz supply. When the voltage across capacitor is 250V, a maximum current of 0.5A flows in the circuit. Find the inductance.

 2.25 µF.
 0.47 µF.
 6.37 µF.
 1.58 µF.

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Electric Circuits
What is apparent power in AC operation?

 Product of voltage and current at no load.
 Product of rms voltage and rms current.
 Product of voltage and current.
 Product of voltage and current at full load.

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Electric Circuits
Two identical resistors are first connected in parallel then in series. The ratio of resultant resistance of the first combination to the second will be

 0.25.
 0.5.
 2.
 4.

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Electric Circuits
Find the Z parameters of the circuit shown in figure.

 Z11 = 2; Z12 = 1; Z21 = 1; Z22 = 2
 Z11 = 3; Z12 = 1; Z21 = 1; Z22 = 3
 Z11 = 3; Z12 = 3; Z21 = 3; Z22 = 3
 Z11 = 1; Z12 = 1; Z21 = 1; Z22 = 1

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Electric Circuits
Consider the following circuit. What is the value of current I in the 5 Ω resistor in the circuit given in the figure?

 4 A.
 3 A.
 0 A.
 2 A.

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