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ohm (Ω)
abohm (abΩ)
nanoohm (nΩ)
microohm (µΩ)
milliohm (mΩ)
kiloohm (kΩ)
megaohm (MΩ)
gigaohm (GΩ)
Electrical resistance is the ability of any body to oppose the passage of electrical current even when there is a potential difference applied. Its calculation is given by the First Ohm's Law, and, according to the International System of Units (SI), it is measured in ohms.