What factors are related to the resistance of the resistor

Last Update Time: 2018-12-06 10:35:16

The size of the resistance of the metal conductor is related to the four factors of the resistivity, length, cross-sectional area and temperature of the conductor.

According to the law of resistance R=ρL/S

1. The greater the resistivity of the conductor, the larger the length, the smaller the cross-sectional area, the greater the resistance of the conductor, the higher the resistivity of the metal conductor and the higher the resistance.

2. When the conductor temperature drops to a certain temperature, the resistance of the conductor suddenly drops to zero. This phenomenon is called superconductivity.

3. For semiconductor thermistor: When the semiconductor is heated, the resistance decreases rapidly with the increase of temperature, and it reacts quickly and accurately to small temperature changes.

4, on the AC circuit Inductance coil Inductance XL = 2πfL Capacitance XC = 1/2πfC

This article is from ALLICDATA ELECTRONICS　LIMITED.

<- Previous Next ->