One True Ohm
Title
One True Ohm
Description
This is a high precision resistor used in a Wheatstone bridge to measure electrical resistance. The label on the resistor says that it is "One true ohm at 18.4 degrees C." The two rods would have dipped into pools of mercury to insure good electrical connections.
Identifier
em_069
Collection
Electricity_and_Magnetism
Source
Display Case H1