What is Voltage?
V = “Electrical pressure” - measured in volts.
A battery in an electrical circuit plays the same role as a pump in a water system.
What Produces Voltage?
V = “Electrical pressure”
Other Symbols Used for Specific Voltage Sources
A Typical Voltage Source
Lab Power Supply
Remember: A voltage is measured between two points
We can measure voltage between
two points with a meter
•Set the meter to read Voltage
• Connect the V of the meter to power supply red
• Connect COM (common) of the meter to power supply black
• Read the Voltage