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** Twist the end of each wire to join the loose strands together.
[[Image:Clipped_plug.jpg | 325 px ]] [[Image:Assymetrically_clipped.jpg | 400 px]]
* With the DC voltage setting on the multimeter in the appropriate range, identify which is the positive and which is the negative wire coming from the adapter. The voltage setting on the multimeter dial is shown below. The number at top will display the current voltage. [[Image:Voltage_setting.jpg | 300 px]]* It is helpful to use a red and black alligator cable to connect from the multimeter probes to the power supply. Attach them as shown. [[Image:Pos_neg_alligator_clips.jpg | 400 px]] * WARNING: You need to plug the adapter into the wall. Be sure that you do not touch the two power supply wires together, this will short out your power supply and you will be out $5.00. This is your first live voltage![[Image:Voltage_setting.jpg | 300 px]] [[Image:Pos_neg_alligator_clips.jpg | 400 px]] [[Image:Testing_powersupply_voltage.jpg | 600 px]]
* Is the positive wire labelled in any way? Attach a red alligator cable to the positive wire, and a black alligator cable to the negative wire. This is the standard color code for positive and negative wire.
* Using one red and one black alligator cable and a short length of red and black hookup wire, connect the positive and negative lines from the power supply to the appropriate power buses on the breadboard.
