1. 1 EE 2303 Intro to ECE Voltage and Current Measurements

2. 2 Introduction Glen Archer – Lab Coordinator 487-2789 (Office) Leave msg with secretary 482-4957 (Home) Between 1000 - 2100 gearcher@mtu.edu www.ee.mtu.edu/labs

3. 3 Teaching Assistants Anand Ambardar David Pelster

4. 4 Agenda Lab Safety (repeat) Voltage Current Electric Circuits Resistors Color code

5. 5 Breadboards Circuit construction techniques Power Supply: 8102 Lodestar DC Power Supply Virtual Instruments: Multimeter NI 4060

6. 6 Vocabulary Electric Circuit Voltage Current Parallel Series

7. 7 Voltage Potential Difference between two points Always has polarity (+/-) Measure voltage in parallel

8. 8 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

9. 9 Electric circuits Current flow requires a continuous path Voltage can appear across an open circuit

10. 10 Series Circuits Current in Series circuits is the same

11. 11 Parallel Circuits Voltage in parallel circuits is the same V a = V b = V c

12. 12 Resistors Carbon Wire wound Precision Power Rating 4-stripe resistor A B C D 5-stripe resistor A B C D E

13. 13 ColorDigit (A) (B)Multiplier CTolerance (D) Black01Bad Brown1101%Boy Red21002%R Orange310003%O Yellow410K4%Y Green5100KGreat Blue61 MFlame ProofBritain Violet710 MVery Grey8Good White9Wife Gold0.15%Go Silver0.0110%See None20%Now 4-stripe resistor A B C D

14. 14 Breadboards Power and Ground Components Rows and Columns

15. 15 Lodestar 8102 Power Supply Dual 30 V 3 A Independent Series Parallel Dual ended (+/-)

16. 16 Lodestar 8102 Controls ON/OFF Mode Selector Volt – Fine and Coarse Current limiter Output Terminals Meters

17. 17 Lodestar 8102 Operation Series Parallel Independent Dual Ended GROUND

18. 18 Multimeter Control Panel Volts AC & DC Current AC & DC Resistance

19. 19 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

20. 20 Where to Get More Information www.astro.wisc.edu/~mukluk/resistor.html www.ee.mtu/labs/EE2303/references