Definitions

Ohm Symbol

We all need a little help sometimes. I’ve put together a list of abbreviations that are commonly used in their repective fields for a quick reference.

AC

Alternating Current

A

Ampere or Amp (SI Unit)
Measurement of current in an electrical system

Ω

Ohm (SI Unit)
Measurement of resistance in an electrical system

cd

Candela (SI Unit)
Luminus intensity of a light source

dB

Decibel
Ratio of power to another power on a logarithmic scale

DC

Direct Current

HVAC

Heating, Ventilation, Air Conditioning

Hz

Hertz (SI Unit)
Measurement of frequency equal to 1 cycle per second

IDE

Integrated Development Environment

LED

Light Emitting Diode

NC

Normally Closed

NO

Normally Open