The Name of Your Course Procedure: Series-Parallel Circuit Construction & Testing with the Electrical Project Board

References: Your Textbook: Chapters 14 & 15 Names: ______

Tools Needed: DMM with test leads, inductive amps clamp

Directions : 1. Build the series - parallel circuit pictured below on the Electrical Project Board.

Instructor Check [ ] 2. Have the instructor approve the build.

3. Begin by making an un-powered resistance test of each load (bulb, resistor, diode, motor, LED). Record your results on the chart.

3. Power up the Electrical Project Board. Determine the OCV (open circuit voltage or source voltage). Record your results on the chart.

4. Determine the voltage available to each of the loads (consumers). Record the results.

5. Determine the voltage drops at each of the loads, the switch, and the ground wire. Record your results.

6. Open the circuit at the fuse. Insert the ammeter & measure amperage.

7. Use an inductive pick-up to verify the current flow at branch or leg.

8. Reconnect the fuse. Use an inductive amps clamp to verify the total circuit current flow at a wire leading from the fuse. Measure the current inductively at each branch. Record the current of each branch. Add them up to get the total circuit amperage

Instructor Check [ ] 9. Power down the Electrical Project Board.

Cold Resistance of Bulb1 _____ Voltage Available at Bulb1 _____ Voltage Drop of Bulb1 _____

Cold Resistance of Bulb2 _____ Voltage Available at Bulb2 _____ Voltage Drop of Bulb2 _____

Cold Resistance of Bulb3 _____ Voltage Available at Bulb3 _____ Voltage Drop of Bulb3 _____

Cold Resistance of Resistor1 _____ Voltage Available at Resistor1 _____ Voltage Drop of Resistor1 _____

Cold Resistance of LED1 _____ Voltage Available at LED1 _____ Voltage Drop of LED1 _____

Open Circuit Voltage _____ Voltage Drop of Ground Wire _____ Voltage Drop of Switch _____

Total Current at Fuse _____ Current Flow of Bulb Leg _____ Current Flow of LED Leg _____