Resistor
The main function of resistors is to reduce the current traveling through a circuit, preventing excess heating or damage to connected components. These elements consume part of the electrical energy they encounter without releasing it elsewhere, converting most of it into heat. Their operation can be described by Ohm's Law (V=IR), meaning that voltage equals current multiplied resistance. Thus, if you know any two of these values, you can calculate the third. The unit of measurement for resistors is ohms (Ω), kilohms (kΩ), or megohms (MΩ). Resistors also carry color codes on their surfaces, indicating their value and tolerance level, which describes how close the actual value should match the nominal one. Combining resistors or selecting appropriate values helps build a wide range of voltage dividers, bias networks etc. Types of resistors include; potentiometers, thermostats, voltage regulators, and other components which are used to resist current or provide feedback via a resistance value.
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