Q. International Ohm is defined in terms of the resistance of :

A
A cube of carbon
B
A cube of copper
C
A column of mercury
D
The unit length of metal wire
Solution:

The international ohm was defined as the resistance of a column of mercury of constant cross section at the temperature of melting ice, 106.3 centimeters long and with a mass of 14.4521 grams.

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