1, the basics of electronic components - - Resistors Resistance, symbols R, in ohms, is a limiting element, represents the size of the current conductor of the impediment. Can be divided into wirewound resistors, carbon film resistors, insurance resistors, sensitive resistors, etc., etc., where sensitive resistor is different according to its sensitive nature, can be divided into varistors, light-sensitive resistors, thermistors, etc. . Now widely found in various circuits, play partial pressure, the shunt, a different role impedance matching and filtering.
