Ohm's Law Report
docx
keyboard_arrow_up
School
University of Mississippi *
*We aren’t endorsed by this school
Course
222
Subject
Electrical Engineering
Date
Apr 3, 2024
Type
docx
Pages
3
Uploaded by EarlSnow13883
Ohm’s Law
February 21st, 2024
Introduction The objective of this lab is to learn the relationship between resistance, current, and voltage. Otherwise, this relationship is called Ohm’s Law. We will do this by using different colored coded resistors wired to two DMMs with leads. Additionally, we used a light bulb to further plot the resistor versus bulb relationship. Data Plots/Charts
Plot 1 Voltage vs. Various Resistors
Plot 2 Voltage vs. Current of Light Bulb
Table 1
R(DMM)
R (code)
% Difference
R (plot)
% Difference
153 ohm 150 ohm 2%
.151 ohm 1.32%
357 ohm 330 ohm 8.18%
.355 ohm .56%
563 ohm 520 ohm 8.27%
.556 ohm 1.26%
Results For the 150 Ohm resistor, the slope was .151. The percent difference between that slope and the reading of the DMM was 1.32%. For the 330 Ohm resistor, the slope was .355. This was .56% different from the original reading. For the 520 Ohm resistor, the slope was .556. This was 2.26% different from the DMM reading. Discussion of Results
We have learned that voltage is proportional to resistance times current. Therefore, when we plot
voltage versus resistance, we are finding the current through the given circuit. Therefore, the current is constant because the voltage and resistance are changing. That is why we get a linearly
proportional relationship. Some potential errors that we may have encountered was the
preciseness of the equipment. The DMM may have not been giving the most accurate readings of
the currents going through the wires. Post Lab Questions Please see attached. Raw Data/Sample Calculations Please see attached.
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help
Related Documents
Related Questions
I need answers with clear hand writing or using Microsoft word . ASAP
measurements , describe how to read the values given on the measurement tools and to write about measurement tools
note: i want a lot of information
arrow_forward
A galvanometer with a internal resistance of 400 and a shunt resistor of value
'Rsh' is connected in series with a 100 resistor. A constant voltage VO' is applied
aoross the oircuit, and the galvanometer deflects a certain amount. The shunt
resistor is then removed, and replaced in series with the 100 resistor. With
the same voltage 'VO', the galvanometer deflection is unchanged.
Calculate the value 'Rsh' of the shunt resistor.
arrow_forward
Figure 1 shows the circuit diagram of an automotive lighting system, and all lamps has
500 Q resistance.
3.
a) Describe the characteristics of a parallel circuit in terms of resistance current and
voltage.
b) Determine:
The current generated by the battery if the brake switch is closed
The current generated by the battery if the light switch is closed
iii. The current generated by the battery if the light switch and high-beam switch are
closed
i.
i.
iv. The current generated by the battery if all switches are closed
high-beam
switch
Lights
switch
Brake
switch
Right
Left
Right
Left
Right
Left
Right
Left
Low-beam
Brake
lights
High-beam
headlights
Tailights
headlights
12V
Figure 1
arrow_forward
7
7 -
In using Kirchhoff’s rules, you generally assign a separate unknown current to ......
A)
each battery in the circuit
B)
each branch in the circuit
C)
none of them
D)
each resistor in the circuit
E)
each loop in the circuit
arrow_forward
Part II: The potential difference across different elements of a circuit resistance in series
1. Using the circuit shown below, set R1 and R2 as shown in the chart below. For each pair of
resistances in the chart below, record the drop in voltage, or potential, across R1 (Figure a), drop
in voltage, or potential, across R2 (Figure b), then record it across both resistors (Figure c).
R,
R,
E,
E,
R,
Figure a
Figure b
R,
E,
E,
R,
Figure c
them
Resistance Values, Voltage Drops, and Curfent Data Values
R,
(ohms) (ohms)
R2
V,
(volts)
4 1-716 V
1.47 V
V2
(volts)
0.268 V
V12
(volts)
| (amps)
26
1.984
1.978 V
65.6 MA
22
0.531 V
65.6 MA
18
1-978 V
12
0.920 V
L.182 V
0796 V
65.6 mA
1.980 V
1.981 V
14
16
1.062 V
65.6 mA
10
20
0.657V
1.325 V
24
1.985 V
65.7 mA
0- 398 V 1. 587 V
65.6 mA
please help
mewith Question
2 and 3
no calculation
needed just a faugafh combination from the voltage and current numbers for that combination. Can this be developed
2. From the data above, explore the relationship…
arrow_forward
Clear Explanation on this question add some step to leading to this how you get this answer
neat handwriting and clear explanation
difficult so please double check answer
have a 2m rod that has been charged to 4C, and a 1m rod that has been charged to -6C.
can place them anywhere on the x-axis (i.e. they are parallel to the x-axis) subject to the
following rules:
• The rods cannot be touching.
• The rods cannot occupy the same space.
a) Draw your system on a Cartesian plan (with labeled axes).
b) Pick any point on the axis that is not being occupied by the rods. Clearly label it.
c) Determine the field at this point.
d) Determine the voltage at this point.
arrow_forward
None
arrow_forward
Please show all work and highlight or circle your answers for parts a,b and c. Thank you
arrow_forward
SEE MORE QUESTIONS
Recommended textbooks for you

Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning
Related Questions
- I need answers with clear hand writing or using Microsoft word . ASAP measurements , describe how to read the values given on the measurement tools and to write about measurement tools note: i want a lot of informationarrow_forwardA galvanometer with a internal resistance of 400 and a shunt resistor of value 'Rsh' is connected in series with a 100 resistor. A constant voltage VO' is applied aoross the oircuit, and the galvanometer deflects a certain amount. The shunt resistor is then removed, and replaced in series with the 100 resistor. With the same voltage 'VO', the galvanometer deflection is unchanged. Calculate the value 'Rsh' of the shunt resistor.arrow_forwardFigure 1 shows the circuit diagram of an automotive lighting system, and all lamps has 500 Q resistance. 3. a) Describe the characteristics of a parallel circuit in terms of resistance current and voltage. b) Determine: The current generated by the battery if the brake switch is closed The current generated by the battery if the light switch is closed iii. The current generated by the battery if the light switch and high-beam switch are closed i. i. iv. The current generated by the battery if all switches are closed high-beam switch Lights switch Brake switch Right Left Right Left Right Left Right Left Low-beam Brake lights High-beam headlights Tailights headlights 12V Figure 1arrow_forward
- 7 7 - In using Kirchhoff’s rules, you generally assign a separate unknown current to ...... A) each battery in the circuit B) each branch in the circuit C) none of them D) each resistor in the circuit E) each loop in the circuitarrow_forwardPart II: The potential difference across different elements of a circuit resistance in series 1. Using the circuit shown below, set R1 and R2 as shown in the chart below. For each pair of resistances in the chart below, record the drop in voltage, or potential, across R1 (Figure a), drop in voltage, or potential, across R2 (Figure b), then record it across both resistors (Figure c). R, R, E, E, R, Figure a Figure b R, E, E, R, Figure c them Resistance Values, Voltage Drops, and Curfent Data Values R, (ohms) (ohms) R2 V, (volts) 4 1-716 V 1.47 V V2 (volts) 0.268 V V12 (volts) | (amps) 26 1.984 1.978 V 65.6 MA 22 0.531 V 65.6 MA 18 1-978 V 12 0.920 V L.182 V 0796 V 65.6 mA 1.980 V 1.981 V 14 16 1.062 V 65.6 mA 10 20 0.657V 1.325 V 24 1.985 V 65.7 mA 0- 398 V 1. 587 V 65.6 mA please help mewith Question 2 and 3 no calculation needed just a faugafh combination from the voltage and current numbers for that combination. Can this be developed 2. From the data above, explore the relationship…arrow_forwardClear Explanation on this question add some step to leading to this how you get this answer neat handwriting and clear explanation difficult so please double check answer have a 2m rod that has been charged to 4C, and a 1m rod that has been charged to -6C. can place them anywhere on the x-axis (i.e. they are parallel to the x-axis) subject to the following rules: • The rods cannot be touching. • The rods cannot occupy the same space. a) Draw your system on a Cartesian plan (with labeled axes). b) Pick any point on the axis that is not being occupied by the rods. Clearly label it. c) Determine the field at this point. d) Determine the voltage at this point.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Electricity for Refrigeration, Heating, and Air C...Mechanical EngineeringISBN:9781337399128Author:Russell E. SmithPublisher:Cengage Learning

Electricity for Refrigeration, Heating, and Air C...
Mechanical Engineering
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Cengage Learning