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California Polytechnic State University, Pomona *
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1101L
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Electrical Engineering
Date
Jan 9, 2024
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docx
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5
Uploaded by louisezhou0625
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ECE 1101L – Lab 6
Potentiometer
Name:
Leyi Zhou
Group:
L
09/27/2023
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Introduction
Background Theory:
Potentiometer is a variable resistor with 3 terminals, which means we are able to adjust the
resistance value of the potentiometer by changing its direction, and we are able to use it to
change the voltage of the circuit. We followed the instructions in the lab to make a table of R1,
R2 and the total R in the given POT (Potentiometer) in 5 different positions.
Objective:
In this experiment, we learned the characteristics and how to use the POT, and we took
measurements of the values of the resistance for different directions of the POT in a circuit. For
part 1 of this experiment, we measured the values of R1, R2 and R for 5 different positions of the
knob of potentiometer. For part 2 of this experiment, we chose the input voltage of our circuit as
10V, and we turned the knob of the potentiometer so that the voltage of it, V2, was half of the
input voltage which was 5V. After we recorded all data, we made a table of the values of R1, R2
and R for part 1, and another table of the values of V2, R2 and R3 for part 2. By comparing all
the data, we would like to verify that the total resistance R of the POT = R1 + R2 for part 1, and
R2 and R3 had the same resistance if the voltage of the POT, V2 was 5V for part 2.
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Lab
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