What is the relationship between capacitors and voltage?

Features of the capacitor:

1. Capable of charging and discharging characteristics and blocking the passage of DC current, allowing AC current to pass.

2. During charging and discharging, the charge on the plates is accumulated, that is, the voltage is established. Therefore, the voltage on the capacitor cannot be abrupt.

1) Charging of capacitors: 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.

2) 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 capacitance, voltage, and power in a capacitor? The unit of capacitance Q is F (Fara), the unit of voltage U is V (volt), the unit of electricity is K (coulomb), 1K = 2.24X10^23 electrons, then it can be seen from the formula Q=UC When the capacitance C of a capacitor is 1F, if the voltage U applied across the capacitor is 1V, then 1K of electricity is injected into the capacitor, which is 2.24X10^23 electrons. 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.