How are resistance values expressed when they are in thousands of ohms?

Resistance values in thousands of ohms are expressed as kilohms, which are denoted by the symbol KΩ. This notation is part of a system of engineering prefixes used to simplify the expression of large or small values in a more manageable form. In this context, one kilohm equals one thousand ohms.

Using KΩ allows for easier communication and understanding, especially in fields like electrical and electronic engineering where dealing with varying magnitudes of resistance is common. The other symbols represent different units; for instance, MΩ signifies megohms (millions of ohms), Ω denotes ohms, and NΩ would indicate nano-ohms, which are significantly smaller values. Thus, recognizing KΩ as the standard for thousands of ohms is essential for accurate readings and effective communication in plumbing and electrical documentation.