Lab_Report_4
.docx
keyboard_arrow_up
School
California Polytechnic State University, Pomona *
*We aren’t endorsed by this school
Course
1101L
Subject
Electrical Engineering
Date
Jan 9, 2024
Type
docx
Pages
13
Uploaded by louisezhou0625
P a g e | 1
ECE 1101L – Lab 4
Series and Parallel Circuits
Name:
Leyi Zhou
Group:
L
10/04/2023
P a g e | 2
Introduction
Background Theory:
The Kirchhoff’s Voltage Law (KVL) says that the algebraic sum of all voltages in a loop is 0, ∑Vi = 0. Therefore, in series circuits, the values of current are the same in the loop. Besides, for circuits in series, the equivalent Req = Rtotal = R1 + R2 + R3 + … +Ri. Besides, the Kirchhoff’s Current Law (KCL) says that the algebraic sum of all currents entering a node is 0, ∑Ii = 0, I1 + I2 + I3 + … + Ii = 0. Therefore, in parallel circuits, the values of voltage are the same across parallel branches.
Objective:
In this experiment, we took measurements and calculated the voltages and the currents in different series circuits and parallel circuits, to verify the KVL and KCL. For Part 1 of this lab, we built a series circuit, measured the node voltages and found branch voltages from node voltages. Then, we calculated the currents through each resistor and verified the values of current
were all the same. Furthermore, we verified the KVL from the measurements of branch voltages,
and we used the voltage and current measurements to calculate the equivalent resistance of the circuit. Lastly, we used Ohmmeter to measure the total resistance, and compared the result with the equivalent resistance. For Part 2 of this lab, we measured the value of V1 between 2 nodes using the Voltmeter. For Part 3 of this lab, we used Cadence to build a series circuit, and ran the Bias Point Simulation of the circuit in PSpice and found the node voltages. We then calculated the branch voltages and verified that the KVL worked correctly around the loop. For Part 5 of this lab, we build a parallel circuit and measured the voltages across all resistors. Then, we found
the values of current through each resistor from voltage measurements, and we wrote KCL at node B of this circuit. After that, we were able to find I in which I = I2 – I3 + I4.
P a g e | 3
Pre-Lab
P a g e | 4
P a g e | 5
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 Questions
Create five(5) Kirchhoff's Voltage Law (KVL) problem with figure and solve it(Show complete solution)
arrow_forward
conclusion and observation in Kirchhoff's Current Law and Kirchhoff's Voltage Law
arrow_forward
i dont understand how we get to the last step
arrow_forward
please teach me how to use Kirchoff's law
arrow_forward
Shown in the figure below is an electrical circuit containing three resistors and two batteries.
I₁
0=
4
+
L
.
ww
R3
R₂
ww
1₂
R₁
ww
Write down the Kirchhoff Junction equation and solve it for I, in terms of I₂ and I3. Write the result here:
1₁ = 12-13
R₂=552
R₂ = 132
13
Write down the Kirchhoff Loop equation for a loop that starts at the lower left corner and follows the perimeter of the circuit diagram clockwise.
- IzR3 − LR₁ + 14
+ 10
Write down the Kirchhoff Loop equation for a loop that starts at the lower left corner and touches the components 4V, R₂, and R₁.
0 = 4-1₂R₂-11R₁
The resistors in the circuit have the following values:
R₁ = 12
Solve for all the following (some answers may be negative):
I₁ = 27.78
X Amperes
1₂ = 28.84
X Amperes
13 = 1.060
X Amperes
NOTE: For the equations, put in resistances and currents SYMBOLICALLY using variables like R₁,R₂,R3 and 11,12,13. Use numerical values of 10 and 4 for the voltages.
arrow_forward
Create a circuit and apply kirchhoffs laws
arrow_forward
Qs # 2. Write down the equations that results from applving
Kirchhoff's junction and loop rule.
A
Rz
1,
7V
3v
5V
arrow_forward
Consider the RC circuit in Figure 2 below. Assuming the switch has been open for a long time before it is closed, fill in a table providing the current through each component and the voltage across each component immediately after the switch is closed, and a very long time after the switch is closed. Next, figure out the time constant for the circuit. (Hint: Assign currents to each branch. Set up the necessary KVL and KCL equations. Eliminate all but one variable to get an equation for just one of the currents. You shouldn’t have to solve this equation to recognize the time constant!)
arrow_forward
(II) Explain what happens if the topology is modified as shown in figure below.
VREFO-
ww
Qz
arrow_forward
Draw the outputs Q1, Q2 AND X in
the system given in the figure
CLK-
CLK
D
Q1
Q2
X
U
O
a
Q1
Q2
HAL
LO
L1
MUX
SO
X
arrow_forward
how to measure ripple factor and peak input and peak output voltage for this circuits ?
arrow_forward
Create a reverse bias graph using the figure below.
arrow_forward
I need the answer as soon as possible
arrow_forward
Using Nodal Method. Determine i,
20
SV
3V
Loop 1) a
Loop 2
a. 0.35 A
O b. 0.25 A
c. 0.50 A
O d. 0.15 A
arrow_forward
2.)What is the difference between Ampere's law and Biot-Savart's law?
arrow_forward
A
Read aloud
V Draw
aye viev
Engineering Problems
#7
March, 8
Four resistors are connected in parallel across a 200-mA independent cur
rent source as shown in Figure P24. What is the voltage across the resistors
and the current in each resistor?
200 mA
U 009
U 001
U 08
arrow_forward
1960048cmid
11667
This course
For the below circuit, find the current i1 through the 18 ohms resistor.
40
120 V
Select one:
O a. in= -8A
O b.iy=-4A
O c.-4A
O d.in-8A
Find Rab-
20 ()
arrow_forward
Determine the loop currents Ia, I,, and Ic.
100
Ic
100
100
100
100
Ib
55V
100 V
la
arrow_forward
Subject: CircuitsGivenRt = 37.9529 ohm..Rcd = 3.6 ohm.Rab=2.3529ohmIt=1.58APt=94.85WV2=3.16VV4=6.32VVab=3.7175vVcd=5.688VI10=0.372AI5=0.7435AI8=0.465AI9=0.632AI6=0.348AP2=4.9928WP4=9.9856WPab=5.88WP14=34.95WPcd=8.99WP12=29.96W
arrow_forward
aloulated m O1
the value
you
Up = A cos wt
+1o
Calaulate
maarli)-min(i) =?
Use constant voltage drop
mad.
Don7 to write units.
.
- 3.7V
forget
arrow_forward
multirange ammeter was designed using direct method to give
three scales with Rsh1= 0.001285989 0, Rsh2=0.000562552 0,
and Rsh3=0.000100001 Q. The d'Arsonval meter has Rm=6 Q and
full scale current of 1.5 mA. Find the ranges.?
8 (Ctrl) -
arrow_forward
Subject: Analog Electronic and Circuit
Please Solve this question
arrow_forward
Consider the circuit shown in (Figure 1). Suppose that
r1105 and ry-3750
Figure
50
4301
250
www
1250
Part A
Simplify the circuit by replacing the Y on the left (25 12.40 12, and r-11012) with its equivalent & as shown in (Egune 2). Determine the
resistances of the equivalent A
Express your answers in ohms to three significant figures. Enter your answers separated by a comma
AE
?
04
R. R. Re
Subme
Part B
4M
Best Answer
Submit
Determine the current supplied by the 40 V source in the circut
Express your answer to three significant figures and include the appropriate units
Ivec
Value
0
Units
arrow_forward
(4)
Find Current To in the following ckt. (or) write all the
Three loop equations.
205
10
10010
m.
3105
345
j55
cler
jzos
m
365
j30r
- 110
arrow_forward
If the resistors used for charging and discharging were the same, the charging anddischarging waveform would be ________.a. Symmetricalb. Nonsymmetrical
arrow_forward
Write out the detailed process ,step by step
arrow_forward
PLS PLS SHOW COMPLETE SOLUTION AND WRITE LEGIBLY. DRAW CIRCUIT DIAGRAM. PLS PLSS SHOWS HOW ALL THE EQUATIONS ARE REDUCED TO NEEDED.
arrow_forward
How did they do KVL, really stuck with KVL so explain simply.
arrow_forward
What is the function of the circuit shown in Figure 9?
CLR
CLK
(9)
(8)
(2)
R
PR
(3)
lo
S
bHR
Q₁
S
bR bR
(5)
Q₂
S
Figure 9
(6)
23
S
PR
(10)
24
PR
(11)
Q5
S
PR
(12)
26
S
(13)
27
arrow_forward
Using the supernode concept to determine the voltage marked v20 in the figure, the crossed wires that are not marked by a thick dot are not in physical contact.
arrow_forward
SEE MORE QUESTIONS
Recommended textbooks for you
Power System Analysis and Design (MindTap Course ...
Electrical Engineering
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:Cengage Learning
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning
Related Questions
- please teach me how to use Kirchoff's lawarrow_forwardShown in the figure below is an electrical circuit containing three resistors and two batteries. I₁ 0= 4 + L . ww R3 R₂ ww 1₂ R₁ ww Write down the Kirchhoff Junction equation and solve it for I, in terms of I₂ and I3. Write the result here: 1₁ = 12-13 R₂=552 R₂ = 132 13 Write down the Kirchhoff Loop equation for a loop that starts at the lower left corner and follows the perimeter of the circuit diagram clockwise. - IzR3 − LR₁ + 14 + 10 Write down the Kirchhoff Loop equation for a loop that starts at the lower left corner and touches the components 4V, R₂, and R₁. 0 = 4-1₂R₂-11R₁ The resistors in the circuit have the following values: R₁ = 12 Solve for all the following (some answers may be negative): I₁ = 27.78 X Amperes 1₂ = 28.84 X Amperes 13 = 1.060 X Amperes NOTE: For the equations, put in resistances and currents SYMBOLICALLY using variables like R₁,R₂,R3 and 11,12,13. Use numerical values of 10 and 4 for the voltages.arrow_forwardCreate a circuit and apply kirchhoffs lawsarrow_forward
- Qs # 2. Write down the equations that results from applving Kirchhoff's junction and loop rule. A Rz 1, 7V 3v 5Varrow_forwardConsider the RC circuit in Figure 2 below. Assuming the switch has been open for a long time before it is closed, fill in a table providing the current through each component and the voltage across each component immediately after the switch is closed, and a very long time after the switch is closed. Next, figure out the time constant for the circuit. (Hint: Assign currents to each branch. Set up the necessary KVL and KCL equations. Eliminate all but one variable to get an equation for just one of the currents. You shouldn’t have to solve this equation to recognize the time constant!)arrow_forward(II) Explain what happens if the topology is modified as shown in figure below. VREFO- ww Qzarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage LearningDelmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Power System Analysis and Design (MindTap Course ...
Electrical Engineering
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:Cengage Learning
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning