| 单词 | potential difference |
| 释义 | potential difference in British Englishnoun the difference in electric potential between two points in an electric field; the work that has to be done in transferring unit positive charge from one point to the other, measured in volts Symbol: U, ΔV, Δφ. Abbreviation: pd. Compare electromotive forcepotential difference in Electrical Engineering (pətɛnʃəl dɪfərəns) or PD noun (Electrical engineering: General) Potential difference is the work done in moving a unit of positive electric charge from one point to another. The symbol for potential difference is V. If you connect the two ends of the same wire to opposite ends of the same battery,current will flow through it due to the potential difference between the two ends of the battery. Ohm's law states that the current through a conductor between two points is directlyproportional to the potential difference or voltage across the two points. Potential difference is the work done in moving a unit of positive electric charge from one point to another. |
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