ECT 122 Week 5 iLab #1
Parts:
Breadboard
DC Power Supply
Hand Held DMM
Test leads
Wire
100 resistor, 120 resistor, 220 resistor, 330 resistor
1. Identify each of these circuits.
Series circuits connec
13.
Calculate the minimum acceptable power rating for the resistor in Figure 3.25a. I = V / R
6V/120=0.05A
14.
Calculate the minimum acceptable power rating for the resistor in Figure 3.25b. : I = V /
ECT122: Week 2 iLab #2
Part 1
Never connect the Positive (+) lead of a power supply to the ground. Connect the
negative lead of the power supply to the circuit FIRST. Then, connect the positive
lead.
11.Determine the potentiometer setting needed to set the current in Figure 4.33a to 18 mA.
I=
Vs
R1
10V
470 = 47mA
=
I=
Vs
R2
10 V
100
=
= 10mA
R1 = 10V 18mA = 180k
12Determine the potentiometer sett
Show all work.
3. Calculate the component voltages and branch currents for the circuit shown in Figure 6.40, along with
the values of IT and RT. IT = IA + IB = 2mA + 2.6mA = 4.6mA RT = RA RB = 13k 10k
ECT 122 Week 1 iLab #3
Parts:
Breadboard
Handheld DMM
DC power supply
Test leads
Resistor kit
1. List the functions available on the Amprobe AM-530 Digital Multimeter handheld
(DMM). It has True-rms,
ECT 122 Week 1 iLab #2
Part 1
1. Calculate the conductance of the following resistors:
Note: dont forget the units!
108,342,000 = 108.342 x 103 = 108.342 k
G=
G=
G=
Resistance
Conductance
108,342,000
ECT 122 Week 7 iLab #3
1. Define the following.
Peak value: The peak value of a waveform is the maximum value reached by either of
its alternations.
Peak-to-Peak value: The peak-to-peak value of a wav
ECT 122 Week 4 iLab #3
Parts:
Breadboard
DC Power Supply
Handheld DMM
Test leads
Wire
1.2k resistor
3.3k resistor
4.7k resistor
1. Calculate the current in each branch of the parallel circuit below.
I
ECT 122 Week 3 iLab #2
Parts:
Breadboard
DC power supply
RT = R1 + R2 + R3 + R4
RT = 1k + 2.2k + 3.3k + 1k =
RT = 7.5k
VS
10 V
IT =
=
= 1.33mA
RT
7.5 k
VR1 = IT x R1 = 1.33mA x 1k = 1.33 V
VR2 = IT x
ECT 122 Week 5 iLab #3
1. Determine the load voltage by deriving an equivalent circuit for the circuit below.
Reduce the R1, R2, and R3 combination to a single equivalent resistance. Also,
reduce R4 a
1.
One coulomb of charge passes a point every 20 seconds. Calculate the value of the current through the
point. I =
Q
t
=
1
20
= 1/20 = 0.05 coulombs per second
2.
A total charge of 2.5 10-3 C passes
Chapter 7, Circuit Analysis Techniques, Practice Problems: 15, 16, 17, and 18
15. Derive the Thevenin equivalent of the circuit shown in Figure 7.47a.
FIGURE 7.47
16. Derive the Thevenin equivalent of
ECT 122 Week 4 iLab #2
Parts:
Breadboard
DC Power Supply
Hand Held DMM
Test leads
Wire
220 resistor
560 resistor
1.0k resistor
1. State Kirchhoffs Current Law. Kirchhoff's Current Law states that the
ECT122 Week 6 iLab #1
1. Define troubleshooting.
Troubleshooting is the process of locating faults in a circuit or system. When a circuit
doesnt operate as expected, Ohms law is one of the best tools
Chapter 5, Parallel Circuits, Practice Problems: 15, 38
Chapter 6, Series-Parallel Circuits, Practice Problems: 18, 20, 38, 40, and 41
15. Determine the potentiometer setting required to set the total
ECT 122 Week 4 iLab #1
Parts:
Breadboard
DC power supply
Handheld DMM
Test leads
Wire
2.2k resistor
3.3k resistor
1. What is the relationship between conductance and resistance?
Resistance and current
ECT 122 Week 7 iLab #1
Name:_
Thevenins Theorem
1. What is Thevenins theorem? What purpose does it serve? Thevenins theorem states
that any resistive circuit or network, no matter how complex, can be
ECT 122 Week 2 iLab #1
Ohms Law
1. State Ohms Law. One part of Ohms law, is the greater the difference of potential
across a fixed resistance, the greater the resulting current. The other parts of Ohm
ECT 122 Week 3 iLab #1
Parts:
Breadboard
DC Power Supply
Hand Held DMM
Test leads
Wire
1.0k resistor
2.2k resistor
3.3k resistor
1. Identify the type of the following circuits as either serial or para
ECT 122 Week 7 iLab #2
Name:_
Alternating Current
1. Define Alternating Current? Alternating current (ac) is bidirectional, meaning that the
flow of charge changes direction periodically.
2. Draw an X
ECT 122 Week 2 iLab #3
Part 1
Parts:
Breadboard
DC Power Supply
Hand Held DMM
Test leads
Wire
56k resistor
1. Given the circuit below, use Ohms law to determine the total current in the circuit and th
1, 3, 8, 16, 23, 26, 30, 40, 46, 47, and 51
1.
Each of the following resistor combinations is connected as shown in Figure 4.29. For each combination,
calculate the total circuit resistance.
R1
R2
R3