Mho meaning

A siemens.
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The former unit of electrical conductance, reciprocal of the ohm.
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The SI derived unit of electrical conductance, equal to one ampere per volt. It is equivalent to the reciprocal of the ohm unit.
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The measure of conductance, which is the reciprocal of resistance (R), as measured in ohms ( ). Conductance is measured in mhos, which is ohms spelled backwards. (Isn't that clever? Physicists call it whimsical.)
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A former unit of electric conductance, equivalent to and superseded by the siemens.

If resistance is measured in ohms, conductance is measured in mhos.

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Origin of mho

  • Backward spelling of ohm
    From American Heritage Dictionary of the English Language, 5th Edition
  • ohm spelled backwards
    From Wiktionary