Colour codes

The following colour codes are used on resistors, and sometimes on capacitors

and inductors, to indicate value:

Figure A2 shows the significance of the bands for a resistor.

For example; a four band resistor with colours yellow-violet-red-red (the last one thick) is 47 × 10² = 4k7, 2%. A five band with brown-grey-black-brown-brown (again the last thick) is 180 × 10 = 1k8, 1 %.