Standard Resistor with Mercury Cups

Title

Standard Resistor with Mercury Cups

Description

This resistor is exactly 10 ohms at a temperature of 23.7 degrees C. It was purchased in 1892 for $5.00.

Connection to a circuit was made through mercury in the cups into which the heavy leads from the resistor dip.

Identifier

em_066

Collection

Electricity_and_Magnetism

Source

Display Case H1

Date

1892