What is the function of the capacitor?

The capacitor is equivalent to an open circuit in the process of DC circuit. capacitor is an element that can store charge, and it is also one of the most commonly used electronic components.

This has to start with the structure of the capacitor. The simplest capacitor consists of plates at both ends and an insulating dielectric (including air) in the middle. After power on, the electrode plate is charged to form a voltage (potential difference), but due to the insulating material in the middle, the whole capacitor is not conductive.

What is the detection method for solid capacitors?

What is the basic function of capacitors?

How many types of capacitors to express their capacity?

What is the detection method for solid capacitors?

1. Determine small capacities under 10pF: Since the capacities of solid capacitors under 10pF are too low, the measurement with a multi-meter can only qualitatively verify the presence of leakage, internal short circuit, or failure. When measuring, you can choose a multi-meter R x10k block and use two meters to connect the two pins of the capacitor as you wish, and the resistance should be infinite. If the measured resistance value (the pointer swings to the right) is zero, that means the capacitor has been damaged by leakage or internal penetration.

2. Detect solid capacitor 10PF -65374001mF: by assessing whether a charging phenomenon exists and then assessing whether it is good or bad. The multi-meter selects R-1k gear. The beta value of the two transistors is over 100 and the penetration current is small. The red and black measuring lines of the multimeter are connected to the emitter e and the collector c of the connecting tubes.

What is the basic function of capacitors?

The basic function of the capacitor is loading and unloading, but many circuit phenomena resulting from this basic loading and unloading function turn the capacitor into different applications. In the electric motor, for example, we use it to create a phase shift; In the photographic flash lamp it is used to provide an energy-rich instantaneous discharge etc. to produce; In electronic circuits, capacitors have many applications with different properties. Although there are different uses, they all come from the store and unload.

How many types of capacitors express their capacity?

1. Standard direct method

Mark directly with numbers and unit symbols.

2. Literary notation

Use a regular combination of numbers and text symbols to express the number of capacity.

3. Colour code

The main parameters of the capacitor are represented by the colour circle or point. The colour coding method of the capacitor corresponds to that of the resistance.

4.Mathematical notation

The mathematical notation is generally three digits, the first and second digits are significant digits and the third digit is a multiple.

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