电压[Voltage] - 达人(其实～我是卧底，来自外星)

2005/07/04 | 电压[Voltage]
类别(Ω〖物理〗) | 评论(0) | 阅读(31) | 发表于 20:27: Denoted or V and also called electric potential. An induced voltage is sometimes called an electromotive force, although this terminology is somewhat archaic. Voltage is defined by the line integral
(1)

Therefore, in a constant electric field,
(2)

The voltage induced by a point charge q at a distance r in cgs is
(3)

and in MKS is
(4)

where is the permittivity of free space.
For a capacitor,
(5)

for an inductor,
(6)

and for a resistor,
(7)

The MKS unit of voltage is the volt. Another unit is the statvolt.; 0