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While the rate may have slowed, the actual costs have always been high, will continue to be high, and in mho have actually increased over the years.

The reciprocal of the ohm is called the mho, which is the unit of conductivity, and is defined as the conductivity of a substance whose resistance is one ohm.

The unit of the latter is the ohm; of the former the mho.

As conductance is the reciprocal of resistance it is measured by the reciprocal ohm or mho.

A conductor having a resistance of 100 ohms has a conductivity of .01 mho.