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Circuit Theory MCQs

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1. What is the unit of conductance?





2. Kirchhoff’s Current Law (KCL) is based on the law of conservation of:





3. Which of the following elements stores energy in the form of a magnetic field?





4. In a series circuit, the same __________ flows through each component.





5. The total resistance in a parallel circuit is:





6. Thevenin’s theorem states that any linear circuit can be replaced by:





7. Norton’s theorem is similar to Thevenin’s theorem, but the circuit is replaced by:





8. In a purely resistive AC circuit, the current is:





9. Which of the following is a linear passive element?





10. The superposition theorem is applicable to:





11. A capacitor opposes changes in:





12. For maximum power transfer to occur, the load resistance must be:





13. The impedance of an inductor is:





14. Which of the following devices can be used to step up or step down voltage levels in AC circuits?





15. In a purely capacitive AC circuit, the current:





16. A resonant circuit is also known as:





17. The quality factor (Q) of a resonant circuit is a measure of:





18. In a parallel RLC circuit at resonance, the current through the inductor and capacitor:





19. Which of the following is used to convert AC to DC?





20. In a series RLC circuit, the total impedance at resonance is:





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