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.
ECT 122 Week 1 Assignment Chapter Practice Problems
Chapter 1
1. One coulomb of charge passes a point every 20 seconds. Calculate the value of the
current through the point.
1/20=.05 or 50mA
2. A tota
Chapter 1
1. One coulomb of charge passes a point every 20 seconds. Calculate the value of the
current through the point.
I=Q/t = 1C/20s = 0.05 C/s = 5mA
2. A total charge of 2.5 10-3 C passes a point
ECT 122 Week 1 iLab #2
Part 1
1. Calculate the conductance of the following resistors:
Note: dont forget the units!
Resistance
108,342,000
10 k
2.2 k
Conductance
9.23n S
100 S
454.55n S
2. Calculate
ECT 122 Week 1 iLab #3
Parts:
Breadboard
Handheld DMM
DC power supply
Test leads
Resistor kit
1. List the functions available on the DM717 handheld digital multimeter (DMM).
Voltage DC and AC
Ohms(res
ECT 122 Week 2 iLab #1
Ohms Law
1. State Ohms Law.
The directed flow of electrons (I) is directly proportional to the force applied (V) but
inversely proportional the opposition (R) to the flow of ele
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. Each of the following resistor combinations is connected as shown in Figure 4.29. For each
combination, calculate the total circuit resistance.
R1
1k
10
150
10k
R2
R3
220
18
220
91k
R4
330
47
820
5