The Siemens (mho) is the unit of electrical conductance. It is the reciprocal of electrical resistance and is represented by the symbol "S". One Siemens is equal to one ampere per volt. What has a unit of mho? A mho is a unit of electrical conductance. It is the reciprocal of an ohm, and is represented by the symbol "℧". What is siemens in conductivity? The siemens is the SI unit of electrical conductance and is equivalent to the reciprocal of an ohm (Ω). It is named after the German inventor and electrical engineer Werner von Siemens. How many siemens is an ohm? The answer is that one siemens is equal to one ohm. How do you convert siemens to mho? To convert siemens to mho, divide the value in siemens by the value in mho. What does mho mean in electricity? The mho is the unit of electrical conductance. It is the reciprocal of electrical resistance and is represented by the symbol ℧.