DEFINITION OF RESISTOR AND ITS COLOR CODING

How is resistor identified according to its color coding?

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. The current through a resistor is in direct proportion to the voltage across the resistor's terminals. Thus, the ratio of the voltage applied across a resistor's terminals to the intensity of current through the circuit is called resistance. This relation is represented by Ohm's law:

V = IR

where I is the current through the conductor in units of amperes, V is the potential difference measured across the conductor in units of volts, and R is the resistance of the conductor in units of ohms. More specifically, Ohm's law states that the R in this relation is constant, independent of the current. Resistors are common elements of electrical networks and electronic circuits and are ubiquitous in electronic equipment. Practical resistors can be made of various compounds and films, as well as resistance wire (wire made of a high-resistivity alloy, such as nickel-chrome). Resistors are also implemented within integrated circuits, particularly analog devices, and can also be integrated into hybrid and printed circuits.

The basic history on the development of a resistor dates back to the year 1789 by the man called Georg Simon Ohm. Brief History of Resitor.

The size of the resistance of a resistor is usually identified through the color band that is present in the resistor itself. Number coding represents the color coding that can be found. It can be easily be remembered by memorizing this letter code; B, B, R, O,Y, G, B, V, G, W, which can also associated with this statement; Bad Boys Rape Our Young Girl But Violeta Give Way, all of these however represents the color; BLACK, BROWN, RED, ORANGE, YELLOW, GREEN, BLUE, VIOLET, GRAY, and WHITE.

Black stands for 0, Brown for 1, Red is 2, Orange is 3, Yellow is 4, Green is 5, Blue is 6, Violet is 7, Gray is 8 and White is 9. On how to use this colors and numbers, a detailed guide can be found by following this portal. Resistor: Definition and Color Code.

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