Task: Text Categorization
Input (English): This quantity's SI unit is found using the von Klitzing constant of the quantum Hall effect. In high-frequency AC circuits, this quantity is increased via the skin effect. It is inversely proportional to the cross-sectional area of its namesake component. Values of it add directly when its namesake components are arranged in series. It equals voltage divided by current, according to Ohm's Law. For 10 points, name this measure of an object's opposition to electrical current.
Output (English): Science