From Klay Anderson@21:1/5 to All on Fri Feb 18 09:44:09 2022
1 Ohm. Was defined as the resistance of a column of mercury (at the temperature of melting ice) of a uniform cross-section of 1 square millimeter and a length of 106.30 centimeters.
1 Volt. Was defined as the electromotive force that produces a current of 1 Ampere when steadily applied to a conductor with the resistance of 1 Ohm.
1 Ampere. Is the unit of current strength. It is the current which, when passed through a solution of nitrate of silver in water (in accordance with certain specifications), deposits silver at the rate of 0.00118 of a gram per second.