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Electric Circuits

Electric Circuits
Which quantity consists of a unit 1KWh ?

 Time
 Energy
 Power
 Charge

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

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

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Electric Circuits
Two resistors R1 and R2 give combined resistance of 4.5 Ohm when connected in series and 1 Ohm when in parallel, the resistances are

 1.5 Ohm and 3 Ohm.
 1.25 Ohm and 3.25 Ohm.
 2.2 Ohm and 2.3 Ohm.
 2 Ohm and 2.5 Ohm.

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Electric Circuits
Which material has extremely large resistance?

 Conductor
 Semiconductor
 Insulator
None of these

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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 resistance.

 480 Ohms.
 100 Ohms.
 1000 Ohms.
 500 Ohms.

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Electric Circuits
Addition of which of the following substance in electrolyte helps in producing bright finish?

 Any of above.
 Glycerine.
 Dextrol.
 Phenol.

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MORE MCQ ON Electric Circuits

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