Glossary of terms | E-Learning for Railway Modellers

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N

Negative

Electrical negative is due to a greater number of electrons than protons in an object. This gives the object a negative charge and a lower electrical potential.

NMRA

The logo of the NMRA. Letters NMRA.org on a blue background. The NMRA is an abbreviation for the National Railroad Association of America. They are one of the bodies along with MOROP who are responsible for setting standards within model railways and DCC.