Basic unit of capacitance Type and symbol of capacitance
1. Unit of capacitance: The basic unit of capacitance is F (method), in addition to μ F (micro method) and pF (pico method), there is another unit that is less used, that is, nF(). Since the capacity of capacitance F is very large, we usually see the units of μ F, nF, pF, rather than the units of F.
2. The specific conversion between them is as follows: 1F=1000000 μ F 1 μ F=1000nF=1000000pF Extension: capacitor is generally referred to as its ability to hold charge, which is represented by the letter C.
3. Definition 1: Capacitor, as its name implies, is a 'container for charging' and a device for holding electric charge.
4. English name: capacitor.
5. Capacitor is one of the electronic components widely used in electronic equipment. It is widely used in the circuit in terms of isolation, connection, bypass, filtering, tuning circuit, energy conversion, control, etc.
6. Definition 2: capacitor, any two conductors (including wires) that are insulated from each other and close to each other constitute a capacitor.
7. Capacitance is different from capacitor.
8. Capacitance is the basic physical quantity, with the symbol C and the unit F (Farad).
9. General formula C=Q/U Special formula for parallel plate capacitor: electric field strength between plates E=U/d, capacitor capacitance determinant C=ε S/4 π kd With the rapid change of electronic information technology, the upgrading speed of digital electronic products is faster and faster, and the production and sales of consumer electronic products, mainly flat screen TVs (LCD and PDP), laptops, digital cameras, etc., continue to grow, It has driven the growth of capacitor industry.