Up until about the late 1970's the units of EC were micromhos per centimeter (µmhos/cm) after which they were changed to microSiemens/cm
1 µS/cm = 1 µmho/cm.
CorrectionThis is true, but the answer and the question illustrate why the "mho" was changed to the "siemens": it's too easy to confuse "mho" and "ohm" Incidentally, the mho was intended to be the ohm spelled backwards, to illustrate that the mho is the inverse of the ohm, but as we see, this turned out to be more confusing than helpful.The original question is how to convert µS cm to ohm cm. I assume that the original poster wanted to convert ohm cm to µS/cm (microSiemens divided by centimeters, not multiplied)
In that case, the answer is that S/cm are the inverse of Ohm cm. So:
1/ 1 megaohm cm = 1 microS/cm
The conductivity is measured in microSiemens per cm.
These are not SI units.
When they are in SI units, Conductivity = 1 / resistivity.
Conductivity (per 1m) = 1/ Resistivity (per 1 m)
Conductivity (per cm) = 1/ Resistivity (per 100 m)
50 microSiemens (= 20,000 ohms per 100m)
= 5000 microsiemens per meter
= 0.005 Siemens per m
= 200 ohms per meter (ohm/m)
300 microSiemens are 3,333 ohms per 100m.
= 30000 microSiemens per m
= 0.03 Siemens per m
= 33.33 ohms per meter (ohm/m)
it cannot be converted to ohms, but to ohm.m (i.e to resistivity and not resistance)
10000/microSiemens per cm = 1 ohm.m
then 10000/84 = 119 ohm.m
Divide the number by 1,000,000 (a million).
Conductance is an opposition of Resistance and it is denoted by G. It is given by the relationship G = 1/R . In past the unit of conductance was (mho) which is opposite to (ohm). But these days the unit of conductance is Siemens which is denoted by 'S'.
Here are some common units, and what they measure:volt - voltage ampere - current ohm - resistance siemens - conductance hertz - frequency (dimensionless number) - power factor watt - power
The SI unit of resistance is Ohm. Ohm was named after German physicist George Simon Ohm. The base units for resistance are Ohm equals kg m squared.
The correct term is 'milliohm', not 'mill ohm'. As a milliohm is one-thousandth of an ohm, 500 milliohms is 0.5 ohm.
Ohm's Law says Voltage = Current x Resistance. Hence, if you know ohms = 10 you need to know the current passing through the resistance to know the voltage drop across the resistance. If there were 1 Amp flowing through resistance, you would have 1 x 10 = 10 Volts.
Ohm is the reciprocal of Siemens. Ohm = 1/Siemens.
Siemens is the reciprocal of ohm. You can convert from milliohms to ohms, then take the reciprocal. The answer will be in Siemens.
You don't . . . they are the same thing. "Siemens" is the SI unit being used to replace the ohm. (Ohm spelled backward)
A megaOhm.cm is a unit of electrical resistance (Note: Centimeters here are multipliers, not denominators). It is equivalent to the unit microS/cm, where S represents Siemens. 1 S = 1/Ohm Some notation uses the inverse term, mho, as in 1 micromho.cm. 1 mho = 1/Ohm = 1 S
0.01 siemens.
m (milli) ohm = 1/1000 ohmµ (micro) ohm = 1/1000000 ohmn (nano) ohm = 1/1000000000 ohmp (nano) ohm = 1/1000000000000 ohm
unit of conduction is reciprocal of resistance and i.e. ohm-1 or siemen.
if it is ohm meter and not ohm per metre; divide by 1,000,000 to convert ohm to megaohm, then divide by 1000 further to convert metre into kilometre
Conductance is the reciprocal of resistance, and is measured in siemens (S). So a 5.1 ohm resistor has 1/5.1 conductance, which is approximately 0.196 078 431 372 549 019 607 843 137 254 9 S.
Siemens
Siemens measures electrical conductance. It is the dimensional reciprocal of Ohms. So if you measured resistance at 0.002 Ohms, the equivalent conductance is 500 Siemens. Note, this unit has been called mhos (Ohm spelled backward) as well. The symbol is an upside down greek upper-case omega character (just like Ohm uses a greek omega).
Resistivity is normally symbolized by the greek letter rho . Units are either ohm-meter (SI) or circular-mil ohms per foot (US). It describes the specific resistance of a sample of material that has particular length and cross-sectional area.Another AnswerIn SI, resistivity is measured in ohm metres.In North America, it is measured in ohm circular-mil per foot.