PHY2049L+Exp+8+Data+and+Instructions PDF

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Data and instructions for experiment 8....

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Provided data for Exp 8 and instructions for data analysis and lab report 1. Data from Exp 8.1 are displayed in Figure 1. (L = 3.3 mH, C = 0.39 µF, R1 = 100 Ω)

Exp 8.1

L = 3.3 mH, C = 0,39 µF, R = 100 Ω

Figure 1 Data from Exp 8.1: voltage across resistor

versus frequency

2. Read fres (exp) from Fig. 1 and record it in Table 1. Calculate f res (theory) and record it in Table 1. Table 1 Comparison of f res (exp) with f res ( theory)

f res (exp)

f res (theory)

% error

3. Data from Measurements #1 to #3 in Exp 8.2 are displayed in Figure 2.

Figure 2 Data from Exp 8.2: phase angle versus frequency 1

4. Record in Table 2 the measured values of t ( R ) and t () at the three frequencies Table 2 Measured values of t (R ) and t () at the three frequencies (L = 3.3 mH, C = 0,39 µF, R = 100 Ω ) f =1000 Hz f = fres (theory)

f = 8000 Hz

t (R ) (s) t () (s) 5. Calculate exp and theory at the three frequencies listed in Table 3. The details of your calculations on

exp and  theory will be the answers to question 1 in the section of “Questions and exercises”. Table 3 Comparison of exp with  theory at the three frequencies (L = 3.3 mH, C = 0,39 µF, R = 100 Ω ) f = 1000 Hz

f = fres

f = 8000 Hz

t = t(R) − t() =

 exp =

 theory =

6. Key issue in answering question #2 ---- R-L-C series circuit and phasor diagram To answer question #2 listed at the end of Exp 8.2 in the lab manual, you need to review the concept of R-L-C series circuit and phasor diagram which you learned in the lecture course. A summary of R-L-C series circuit and phasor diagram is given in the pdf file of “PHY2049L Exp 8 Theory”. Please go through this file thoroughly before you answer question #2. 7. Instructions for lab report on Exp 8 (a) Figures 1 and 2 should be included in your Exp 8 report. (b) Tables 1 to 3 with all the required data should be included in your Exp 8 lab report. (c) Answers or solutions (with detail reasonings, calculations and diagrams) to the questions #1 to #4 at the end of Exp 8.2 lab manual should be included in your Exp 8 lab report. (d) The required other contents and format for your lab report can be found in the syllabus.

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