(21) Experiment V -Resonance in an LRC circuit: Can the voltage across the capac

Question

(21) Experiment V -Resonance in an LRC circuit: Can the voltage across the capacitor in a series LRC circuit be larger than the voltage across the voltage source? Briefly explain.

(22) Experiment V -Resonance in an LRC circuit: How can we make the Q of an LRC circuit larger?

(23) Experiment V -Resonance in an LRC circuit: How can we increase the resonant frequency of an LRC circuit?

(25) Experiment V -Resonance in an LRC circuit: Explain how to measure the resonant frequency and Q of a resonant circuit.

Explanation / Answer

21) yes, as V2 = VR2 + (VL - VC)2

22) Q can be increased by increasing resonance frequency

23) resonance frequency can be increased by decreasing the value of either capacitance or inductance or both

25) f = 1/[2 x 3.141 x sqrt(LC)] Q = f/delta(f)

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