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Electrical reference

Ohm (Ω)

Ohm is an electrical unit of resistance. The Ohm symbol is Ω.

Ohm (symbol Ω) is the electrical unit of resistance.

The Ohm unit was named after George Simon Ohm.

1Ω = 1V / 1A = 1J · 1s / 1C2

Table of resistance values of Ohm

name symbol conversion example
milli-ohm 1mΩ = 10-3Ω R0 = 10mΩ
ohm Ω - R1 = 10Ω
kilo-ohm 1kΩ = 103Ω R2 = 2kΩ
mega-ohm 1MΩ = 106Ω R3 = 5MΩ

Ohmmeter

Ohmmeter is a measurement device that measures resistance.