mΩ
milliohm
Resistanceexact by definition
The milliohm is one thousandth of an ohm. It is the scale of current-sense shunts, contact and connector resistance, busbar joints and battery internal resistance, all measured with four-wire techniques because the test leads themselves are worth more than the sample. The factor of 1e-3 is exact, being an SI prefix.
Watch out: A two-wire meter cannot read milliohms honestly. Lead and contact resistance of an ordinary test lead pair runs from tens to hundreds of milliohms, so a four-wire Kelvin connection is required rather than optional.
| 1 mΩ | 0.001 Ω |
Solvers that use resistance