1. Lab 1 Breadboard and Measurement Techniques Tom Rebold

2. Calculate the current in this circuit using Ohm’s Law 3  6V I

3. Ohm’s Law, Including Power Reproduced by permission of Tony van Roon, 2002 http://www.uoguelph.ca/~antoonhttp://www.uoguelph.ca/~antoon

4. How Many Watts dissipated by Resistor? 2A 300  P=I 2 R

5. Series Circuits One current path, therefore the current is the same everywhere Total resistance is the sum of the individual resistances

6. VOLTAGE DIVIDER I

7. Calculate R T and the current in this circuit, and v1 4  8  6V v1

8. Parallel Circuits More than one current path Total current is the sum of the individual currents

9. Parallel Circuits (2)

10. Calculate R T and the current in each branch of this circuit 6  3  6V i1 i2 ITIT

11. Calculate R T and the current in each branch of this circuit 3  6V 6  i1 i2 ITIT

12. Lab--The Breadboard Vin (6 V) Vss (Ground) Each row is Connected

13. Lab--A Simple Circuit Vin (6 V) Vss (Ground) Each row is Connected

14. Wire the following parallel circuit on the breadboard 6  3  6V i1 i2 ITIT

15. The Parallel circuit from previous Vin (6 V) Vss (Ground)

16. A Series Circuit Vin (6 V) Vss (Ground)

17. Lab--Measure Volts in Parallel Because the voltmeter is placed in parallel with the circuit element, you do not need to physically alter your circuit in order to measure voltage.

18. Measure Voltage in Parallel Vin (6 V) Vss (Ground) V

19. Measure Current in Series You must physically modify your circuit: 1.Create a gap in the segment where you want to measure current. 2.Reconnect the gap using your ammeter as a jumper wire

20. Measure Current in Series Vin (6 V) Vss (Ground) A

21. Caution!!! If you measure Amps in parallel, you can damage the meter

22. Measure Resistance out of circuit Select the ohms mode, remove the resistor to be measured from your circuit, and place the ohmmeter leads across the resistor leads. It is not OK to use your fingers to do this (your body resistance will change result!)

23. Web References Learn Electronics Tutorials and Information Pages http://www.twysted-pair.com/ http://www.twysted-pair.com/ Electronics Tutorials http://www.electronics-tutorials.com/ Tutorials for Learning about Electronics http://www.iguanalabs.com/maintut.htm AC Electricity and Electronics http://www.sweethaven.com/acee/default.htm

24. Web References Jones on Stepper Motors http://www.cs.uiowa.edu/~jones/step/ Holt Software http://www.holtsoft.com/ Turing, Computer Engineering textbooks Tony’s Website http://www.uoguelph.ca/~antoon/ Many excellent tutorials, example circuits