| 释义 |
OH The chemical symbol for hydroxyl. See also hydroxyl. ohm (Ω) The unit of both resistance (R) and impedance (Z). In the International System of Units (SI), one (1) ohm is the resistance such that a difference in potential of one (1) volt (V) between the positive (+) end and the negative (–) end of a conductor produces a constant current of one (1) ampere (A). See also ampere, current, impedance, mho, Ohm’s Law, resistance, SI, and volt. |