Electronic Terms, Symbols, and Tools
Voltage is potential Energy noted by the symbol “V”.
For the scope of this document we are only concerned
With DC voltage. So be sure when setting the DMM to
Measure voltage it is set to DC.
Resistance is opposition to the flow of current.
Resistance is noted by the Greek “Omega” symbol,
Which resembles a horse shoe or upside down “u”
Measuring resistance is often used to detect continuity
Or a break in a wire or switch.
A Diode is a device that allows current to flow in only
one direction and blocks current flow in the other direction.
A Diode is noted by the symbol
The diode has a white band to indicate the polarity.
Always make sure diode is installed in proper direction
50
Digital
Multi
Meter
(DMM)
White band
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