Two first bands (first band is the one nearest the end of the resistor) indicates the value, the third indicates the multiplier and the fourth indicates tolerance.
A resistor with the four color bands
yellow - violet - orange - red
4 - 7 - 103 - +/-2%
has a value of 47 kΩ with tolerance +/- 2%.
|Band 1||Band 2||Multiplier||Tolerance|
Download and print Resistors - Standard Colors Codes table
Three first bands (first band is the one nearest the end of the resistor) indicates the value, the fourth indicates the multiplier and the fifth indicates tolerance.
A resistor with the five color bands
red - yellow - white - orange - brown
2 - 4 - 9 - 103 - +/-1%
has a value of 249 kΩ with tolerance +/- 1%.
|Band 1||Band 2||Band 3||Multiplier||Tolerance|
Electrical units, amps and electrical wiring, wire gauge and AWG, electrical formulas and motors.
Electrical resistance in plain copper or aluminum wires.
Commonly used electrical formulas like Ohms Law and more.
Resistance, voltage and current in electrical parallel circuits.
Resistors in parallel and serial connections.
The relation between voltage, current and electrical resistance.
The reciprocal of electrical resistance is conductance.
Resistivity, conductivity and temperature coefficients for common materials like silver, gold, platinum, iron and more..
Letter and digit codes to indicating resistor values.
Preferred number series for resistors.
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