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Electric Circuits

Electric Circuits
Which of the following is not a bilateral element?

 Diode.
 Inductor.
 Resistor.
 Capacitor.

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Electric Circuits
The coils having self inductor of 10 mH and 15 mH have an effective inductor of 40 mH, when connected in series aiding. What will be the equivalent inductor if we connect them in series opposing

 5 mH.
 0 mH.
 10 mH.
 20 mH.

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Electric Circuits
KVL works on the principle of

 law of conservation of charge.
 both.
 law of conservation of energy.
None of these

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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

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

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Electric Circuits
The capacitance of a parallel plate capacitor can be varied by

 changing the dielectric medium only.
 changing the distance between the plates only.
 changing the overlapping area of the plates only.
All of these

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Electric Circuits
Which quantity consists of a unit 1KWh ?

 Power
 Energy
 Time
 Charge

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