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Transcript 
EE 2303 Intro to ECE
Voltage and Current
Measurements
1
Introduction
Glen Archer – Lab Coordinator
487-2789 (Office) Leave msg with secretary
482-4957 (Home) Between 1000 - 2100
[email protected]
www.ee.mtu.edu/labs
2
Teaching Assistants
Anand Ambardar
 David Pelster

3
Agenda
Lab Safety (repeat)
 Voltage
 Current
 Electric Circuits
 Resistors
 Color code

4
Breadboards
 Circuit construction techniques
 Power Supply: 8102 Lodestar DC Power
Supply
 Virtual Instruments: Multimeter NI
4060

5
Vocabulary
Electric Circuit
 Voltage
 Current
 Parallel
 Series

6
Voltage



Potential Difference
between two points
Always has polarity
(+/-)
Measure voltage in
parallel
7
Current: Amperes (A)




The flow of electrical
charge through a
conductor or circuit
element
Current flow requires
a continuous path
Measure current in
SERIES
Direction is
important
8
Electric circuits


Current flow requires a continuous path
Voltage can appear across an open circuit
9
Series Circuits

Current in Series circuits is the same
10
Parallel Circuits


Voltage in parallel circuits is the same
Va = Vb = Vc
11
4-stripe resistor
Resistors




Carbon
Wire wound
Precision
Power Rating
A
B
C
D
5-stripe resistor
A
B
C
D
E
12
4-stripe resistor
A
B
C
D
Color
Digit (A) (B) Multiplier C Tolerance (D)
Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
Grey
White
Gold
Silver
None
0
1
2
3
4
5
6
7
8
9
1
10
100
1000
10K
100K
1M
10 M
0.1
0.01
1%
2%
3%
4%
Flame Proof
5%
10%
20%
Bad
Boy
R
O
Y
Great
Britain
Very
Good
Wife
Go
See
Now
13
Breadboards



Power and Ground
Components
Rows and Columns
14
Lodestar 8102 Power Supply





Dual 30 V 3 A
Independent
Series
Parallel
Dual ended (+/-)
15
Lodestar 8102 Controls
ON/OFF Mode Selector
Volt – Fine and Coarse
Current limiter
Output Terminals
Meters
16
Lodestar 8102 Operation





Series
Parallel
Independent
Dual Ended
GROUND
17
Multimeter Control Panel



Volts AC & DC
Current AC & DC
Resistance
18
Summary










Lab Safety (repeat)
Voltage
Current
Electric Circuits
Resistors
Color code
Breadboards
Circuit construction techniques
Power Supply: 8102 Lodestar DC Power Supply
Virtual Instruments: Multimeter NI 4060
19
Where to Get More Information
www.astro.wisc.edu/~mukluk/resistor.html
 www.ee.mtu/labs/EE2303/references

20
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