LAB SHEET-Experiment-1 ELECTRICAL LAB (SEMM 2921), SKM UTM JB

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UNIVERSITI TEKNOLOGI MALAYSIA

JOHOR BAHRU

SEMM 2921 ELECTRICAL LABORATORY

LABORATORY SHORT REPORT

(EXPERIMENT-1)

VOLTAGE DIVIDER AND OPERATIONAL AMPLIFIER

NAME :

GROUP / SECTION :

EXPERIMENT DATE :

LAB SHEET-Experiment-1 ELECTRICAL LAB (SEMM 2921), SKM UTM JB

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RESULTS

Table 1: Input and output voltages of voltage follower

Vin (V) Vf (V) Error (%) 5 4 3 2 1

Table 2: Non-inverting output voltages

a. R1 = 1kΩ and R2 = 1kΩ

Vin (V) Theory Experiment

Error (%) Vop_amp (V) Vop_amp (V)

5 3 2

1.5 1.4 1.3 1.2 1.1 1 0

b. R1 = 1kΩ and R2 = 2kΩ

Vin (V) Theory Experiment

Error (%) Vop_amp (V) Vop_amp (V)

5 3 2

1.5 1.4 1.3 1.2 1.1 1 0

LAB SHEET-Experiment-1 ELECTRICAL LAB (SEMM 2921), SKM UTM JB

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DISCUSSION

(Please use separate sheet of papers)

1. Compute the error (%) for Vf in Table 1. Discuss the error obtained.

2. Compute the Vop_amp (theory) and error (%) in Table 2a and Table 2b. Discuss the error obtained.

3. Plot graph Vop_amp (Experiment) again Vin from data obtained in Table 2a and Table 2b. State your observations. Discuss and compare the plotted graphs.

4. Give an example of application for experiment conducted (potentiometer, voltage follower circuit and non-inverting circuit).

5. Can non-inverting circuit be used as attenuation? Provide an example in term of resistances value to support your reason.

CONCLUSION

(Please use separate sheet of papers)

State the conclusion of the experiment.

REFERENCE

(Please use separate sheet of papers)

State the references of the experiment