Which of the following describes the unit of electrical resistance?

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The unit of electrical resistance is expressed in ohms. This unit measures how much a material opposes the flow of electric current. According to Ohm's Law, resistance is defined mathematically as voltage divided by current, or R = V/I, where R is resistance in ohms, V is voltage in volts, and I is current in amperes. This relationship emphasizes that ohms quantify the hindrance to current flow.

Volts are the unit of electrical potential or voltage, which indicates the force that pushes electric current through a circuit. Amperes, on the other hand, measure the flow of electric current itself. Watts represent electrical power, calculated as the product of voltage and current. Each of these units serves a unique purpose in the realm of electrical engineering, but when specifically discussing resistance, ohms is the appropriate and correct term.