How do you convert resistivity given in mΩ to ohms?

• A. Divide by 100
• B. Multiply by 1000
• C. Divide by 1000
• D. Multiply by 10

Answer: (C)

Resistivity is typically expressed in ohm-meters (Ω·m) in the SI unit system. However, when you encounter resistivity values given in milliohms (mΩ), it is important to understand the relationship between these units. One milliohm is equal to one-thousandth of an ohm (1 mΩ = 0.001 Ω).

To convert from milliohms to ohms, you need to convert the value by dividing by 1000. This is because there are 1000 milliohms in a single ohm, so when you have a resistivity value in milliohms and you want to express it in ohms, the mathematical operation you perform is division by 1000.

Therefore, when the answer states to divide by 1000, it indicates the correct method to achieve the conversion from milliohms to ohms accurately.