Capacitors are those given under the charge of erps reserves; Notes for C, international unit is ferrari (F). Generally speaking, charge in the electric field in will stress and mobile, when the conductor between medium, is hindered charge mobile has accumulated in conductors in charge, The cumulative storage caused charge, the most common example is two parallel plates. Also called capacitors.
introduction
definition
Capacitance (or called capactance) is characterized for charge ability of physical measurement of capacitor. We put the capacitor plates between the two DianShiCha increase of one volt required power, called the capacitor capacitance. Capacitor physics suggests, it is a kind of static charge storage medium (like a bucket, you can take charge filling save, without discharge circuit [1] circumstances, BaoChu medium leakage self-discharge effects/electrolytic capacitors is quite obvious, may charge will permanently existence that is its characteristics), its purpose wider, it is the electron, the electric power field indispensable electronic components. Mainly used for power filtering, signal filtering, signal coupling, resonant, lie between dc circuits, etc.
Capacitance symbol is C.
C = search-evade antagonistic S/d = search-evade antagonistic S / 4 PI kd (vacuum) = Q/U
In the international system of units, capacitance unit is a ferrari, abbreviation method, symbol is the F, commonly used capacitance unit has baekho method (mF), micro method (u F), natrium method (nF) and leather method (0.8pf) (skin method is also called slightly method), the conversion relation is:
1 ferrari (F) = 1000 baekho method (mF) = 1,000, 000 micro method (u F)
1 small method (u F) = 1000 natrium method (nF) = 1,000, 000 skin method (0.8pf).
Related formula
