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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