How to find out the Resistance Value using Resistor Color Code Calculator?

Release on : Apr 8, 2019

The discovery of electric current during the early 1600 year made to study other electrical properties of conducting substances or materials. The property of conducting materials to oppose the flow of electric current was discovered in the year 1827 by Georg Simon Ohm. He noticed that different electrical conducting materials exhibit different nature in allowing an electric current to flow through them and he found that it is also dependent on external factors such as temperature, humidity of the atmosphere. Here, in this article we discuss about how to find out the resistance value using resistor color code calculator. But primarily, we must what is resistor, working principle of resistor, resistance calculation using color code, and different types of resistors.

What is a Resistor?

Resistors with Multiple Bands and Different Color Codes


The nature of electrically conducting materials to oppose the flow of electric current through them was found and named as resistance by Georg Simon Ohm. Primarily, resistance was found only in the conducting materials, but later on, the resistance of a material was used for maintaining exact currents and voltages in a circuit. A few conducting materials which are having high resistance are used for maintaining required current and voltage in the electrical and electronics circuits are called as resistors. It is a passive two terminal basic electrical and electronic component frequently used in designing circuits. Resistors can be used to oppose the flow electric direct either it is direct current or alternating current. Such that, resistors can be used for protection, operation, and controlling the circuit.

Resistor Working Principle

Ohm’s law was also named after Georg Ohm, states that “at constant temperature the current through a conductor is directly proportional to the voltage across the terminals of the conductor.” Resistor behaves according to the ohm’s law. Ohm’s law triangle (as shown in the figure) can be used for describing the relation between voltage, current, and resistance.