Labs and Works done in Physical Computing Class at SVA IXD, by Beatriz Vizcaíno.
MEASURING VOLTAGE
Voltage is commonly used as a short name for electrical potential difference.
The voltage between two (electron) positions “A” and “B”, inside a solid electrical conductor (or inside two electrically-connected, solid electrical conductors), is denoted by (VA − VB). This voltage is the electrical driving force that drives a conventional electric current in the direction A to B
This voltage is the electrical driving force that drives a conventional electric current in the direction A to B.
Source: Wikipedia
In this case the Multimeter does a calculation for you. If you measure the two wires conected to the power jack you will get a reading of 13.5 aproximately, this is what´s coming from the power supply. Then as the current gets to the resistor and it is converted to 5.0 Volts. Which is what we will use in the other steps of the Lab.
