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Experiment 7 Mark Sawh

# Experiment 7 Mark Sawh - Experiment 7 The RLC Circuit Mark...

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Experiment 7 The RLC Circuit Mark Sawh Date Preformed- 10-12-09 Date Due- 10-19-09

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Purpose To study resonance in a series resistor-inductor-capacitor (RLC) circuit by examining the current through the circuit as a function of the frequency of the applied voltage. Theory The amplitude of the AC current ( I 0 ) in a series RLC circuit depend upon the amplitude of the applied voltage (V 0 ) and the impedance (Z). The upper case I 0 , V 0 , V R , V L , V C represent the amplitude of the current and voltages, the lower case I, ν, ν R , ν L, ν C represent the instantaneous values of the current and voltages. Since impedance depends on frequency, the current varies with frequency. The current will be at maximum when the circuit is driven at its resonance frequency. = ws 2πfres1LC At resonance, the current and voltage are in phase, and V R= V 0 Three characteristics of resonance. ω = ω res o V R reaches the maximum value of V R max .
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Experiment 7 Mark Sawh - Experiment 7 The RLC Circuit Mark...

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