271-7 - , 10K Ω , obtain and sketch the waveforms of V L...

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HACETTEPE UNIVERSITY ELE 271 MEASUREMENT LABORATORY EXPERIMENT #7 FIRST ORDER CIRCUITS Object : Experimental verification of the time responses of RC and RL circuits. Theory : The details are given in the ELE 203 Circuit Theory I course notes. 1. PRELIMINARY WORK : 1.1 For the circuit given in figure.1, sketch roughly the waveforms of V C (t) and V R (t) . V c (t) V R (t) V s (t) t(msec) V s (t) (Volt) 5 -5 0 1.32 2.64 3.96 5.28 1.2K μ 0.22 F Figure.1 1.2 For the circuit given in figure.2, sketch roughly the waveforms of V L (t) and V R (t) . V L (t) V R (t) V s (t) t(msec) V s (t) (Volt) 5 -5 0 1.8 3.6 5.4 7.2 120 36mH Figure.2 2. EXPERIMENTAL WORK : 35
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2.1 Set-up the circuit shown in figure.3. a) For R=47 , 470 , 4.7K , 47K , obtain and sketch the waveforms of V C (t) and V R (t); measure the time constants. b) By changing the frequency of the input signal, notice on the output waveform variations. V c (t) V R (t) R μ 0.22 F 10V p-p 250Hz Figure.3 2.1 Set-up the circuit shown in figure.4. a) For R=10 , 1K
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Unformatted text preview: , 10K Ω , obtain and sketch the waveforms of V L (t) and V R (t); measure the time constants. b) By changing the frequency of the input signal, notice on the output waveform variations. V R (t) R 10V p-p 125Hz V L (t) L Figure.4 3. RESULTS and CONCLUSION : 3.1 Compare your theoretical and practical voltage waveforms, and comment on differences. 3.2 Compare your theoretical and practical time constants for each case, and comment on differences. EQUIPMENT AND COMPONENTS : Oscilloscope Signal Generator Capacitor : 0.22 μ F, Inductor Resistors: 47 Ω (#1), 100 Ω (#1), 470 Ω (#1), 1K Ω (#1), 4.7K Ω (#1), 10K Ω (#1), 47K Ω (#1) HACETTEPE UNIVERSITY DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING 36 ELE 271 MEASUREMENT LABORATORY EXPERIMENT #7 Experiment Date : Group No : Group Members : RESULTS : t(msec) t(msec) t(msec) t(msec) t(msec) t(msec) t(msec) t(msec) 37...
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This note was uploaded on 05/25/2011 for the course ELECTRONIC 271 taught by Professor Ugurbaysal during the Spring '11 term at Hacettepe Üniversitesi.

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271-7 - , 10K Ω , obtain and sketch the waveforms of V L...

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