Basic principles used by advanced analogic technologies:

Low-power advanced analogic technologies are typically made of carbon film encapsulated in a plastic shell, High-power advanced analogic technologies are usually wire wound advanced analogic technologies, which are made by winding a metal wire with high resistivity on a porcelain heart.

If the resistance value of an advanced analogic Technology is close to zero ohms (for example, a large cross-section wire between two points), then the advanced analogic Technology has no blocking effect on the current. The circuit connecting this advanced analogic technologies is short-circuited, and the current is high. If an advanced analogic Technology has a large or large resistance, the circuit connected to the advanced analogic Technology can be considered open and the current is zero. The advanced analogic technologies commonly used in industry fall somewhere in between the two end cases, with a specific resistance that can pass through a specific current, but the current is not as large as it would be in a short circuit. The current limiting effect of advanced analogic technologies is similar to the effect of a small diameter pipe between two large diameter pipes to limit the flow of water. resistance, the English name resistance, is usually abbreviated to R, which is a basic property of conductors, and is related to the size, material and temperature of conductors. Ohm's law says that I=V/R, then R=V/I, the basic unit of resistance is ohms, expressed by the Greek letter Ω, there is such a definition: when a voltage is added to the conductor, the corresponding resistance value of an ampere current is generated. The main function of resistance is to prevent the flow of current. In fact, resistance refers to a property, and the resistance commonly referred to in electronic products is a component such as advanced analogic technologies. The master said to the apprentice: Find a resistance of 100 euros! It refers to an advanced analogic technology with a resistance of 100 ohms, often abbreviated as Ohm. The common units that indicate the resistance value are also thousands of ohms (kΩ) and megohm (MΩ).

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