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Circuit Theory Question Paper

Circuit Theory

Course:Bachelor Of Electrical And Electronics Engineering

Institution: Moi University question papers

Exam Year:2010

CIRCUIT THEORY
REVIEW QUESTIONS.

1. What is meant by the general term resonance?

2. What property of an electric circuit makes resonance possible?

3. Derive an equation to determine the capacitance required to tune a given inductance to series resonance at a given frequency.

4. Why does the resistance in a series-resonant circuit have no bearing on the resonant frequency?

5. What is the significance of the resistance in a series-resonant circuit?

6. What is the significance of the term L/C ratio in resonant circuits?

7. What is the significance of the Q factor of resonant circuits?

8. What is the significance of the term resonant rise of voltage in discussing resonant circuits?

9. What is the significance of the term half-power points in discussing resonant circuits?

10. How does a parallel resonant circuit differ in circuit behaviour from a series resonant circuit?

11. Why are parallel resonant circuits capacitive at frequencies above the resonant frequency whereas series resonant circuits are inductive at frequencies above the resonant frequency?

12. Why does decreasing the resistance of the coil of a parallel resonant circuit increase the total impedance at resonance?

13. Why does a change in the resistance of a coil in a parallel resonant circuit affect the resonant frequency?

14. If a resistor were placed in parallel with the capacitor of a series resonant circuit, would the resonant frequency be affected? Explain

15. Why does the resonant frequency of a parallel resonant circuit tend to drift as the loading on the circuit is increased?

16. What is the significance of the term tank current in discussing resonant circuits?

Circuit Theory Question Paper

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