What is the relationship between capacitors and voltage?

The characteristics of capacitors are:

1. It has charge and discharge characteristics and the ability to block the passage of DC current, allowing AC current to pass.

2. During the charging and discharging process, the charge on the two plates has an accumulation process, that is, the voltage has a settling process, and therefore, the voltage on the capacitor cannot be abruptly changed.

Capacitor charging: The two plates are respectively charged with equal amounts of different charges, and the value of the charge of each plate is called the charge of the capacitor.

Discharge of the capacitor: The positive and negative charges of the two poles of the capacitor are neutralized by the wires. A short current is generated on the wire during discharge.

3. The capacitive reactance of the capacitor is inversely proportional to the frequency and capacity. That is, when analyzing the magnitude of the capacitive reactance, it is necessary to contact the frequency of the signal and the size of the capacity.

So what is the relationship between capacitors, voltage, and power in capacitors? The unit of capacitance Q is F (Fara), the unit of voltage U is V (volt), the unit of electricity is K (coulomb), a coulomb = 2.24 by 10 23 powers, then from the formula Q = UC It can be seen that when the capacitance C of a capacitor is 1F, if the voltage U applied across the capacitor is 1V, then the capacitor is pressed into the 1K amount, which is 2.24 by 10 23 The second power is electronic. It is to describe the amount of charge that two metal plates can store at one voltage, which is equivalent to the size of a water-filled bucket.