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Lab 1 Breadboard and Measurement Techniques

Lab 1 Breadboard and Measurement Techniques. Tom Rebold. Calculate the current in this circuit using Ohm’s Law. 3 W. I. 6V. Ohm’s Law, Including Power. Reproduced by permission of Tony van Roon, 2002 http://www.uoguelph.ca/~antoon. How Many Watts dissipated by Resistor?. 300 W. 2A.

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Lab 1 Breadboard and Measurement Techniques

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  1. Lab 1 Breadboard and Measurement Techniques Tom Rebold

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

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

  4. How Many Watts dissipated by Resistor? 300 W 2A P=I2R

  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 RT and the current in this circuit, and v1 4 W 8 W v1 6V

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

  9. Parallel Circuits (2)

  10. Calculate RT and the current in each branch of this circuit IT i1 i2 6 W 3 W 6V

  11. Calculate RT and the current in each branch of this circuit 3 W IT i1 i2 6V 6 W 6 W

  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 IT i1 i2 6 W 3 W 6V

  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 Pageshttp://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

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