WRN-630 WRN-620 WRN-621 WRN-622 WRN-623 K type thermocouples
WRN-630 WRN-620 WRN-621 WRN-622 WRN-623 K type thermocouples, the resistor commonly used in the industry lies between two extreme cases. It has a certain resistance and can pass a certain current, but the current is not as large as in a short circuit. The current limiting effect of the resistor is similar to the role of the small diameter pipe connected between two large diameter pipes to limit the water flow. Resistance, the English name resistance, is usually abbreviated as R, it is a basic property of a conductor, and it is related to the size, material and temperature of the conductor. Ohm's law states that I = U / R, then R = U / I, the basic unit of resistance is ohms, which is represented by the Greek letter "Ω", and has this definition: when a volt is added to a conductor, an ampere current is generated The corresponding resistance value. The main function of a resistor is to prevent current from flowing. In fact, "resistance" refers to a property, and the resistance usually referred to in electronic products refers to a component such as a resistor. Ohm is often referred to as Europe. Common units used to express resistance values are kiloohms (kΩ), megohms (MΩ), and milliohms (m Ω).