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1. How can we increase the resonant frequency of an LRC circuit? 2. A 30 mH indu

ID: 3163679 • Letter: 1

Question

1. How can we increase the resonant frequency of an LRC circuit?

2. A 30 mH inductor, a l nF capacitor and a l k resistor are connected in series with a voltage generator. What is the expected resonant frequency and Q of the circuit?

3.  A series LRC circuit is driven at resonance with a sine wave voltage source. What is the sum of the voltages across the inductor and the capacitor in an ideal circuit? Briefly explain.

4. A series LRC circuit is driven at a frequency which is much less than the resonant frequency with a sine wave voltage source V0sin(t). What is the approximate voltage across the capacitor? Briefly explain

5. Explain the difference between impedance and resistance.

Explanation / Answer

1) Here, for increasing the resonant frequency

as resonant frequency is given as

f = 1/(2pi * sqrt(L * C))

the value of either L (inductance) or C ( capacitance) of the circuit must be decreased

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please post rest in seperate post