Color band system To distinguish left from right there is a gap between the C and D bands: A diagram of a resistor, with four color bands A, B, C, D from left to right A diagram of a 2.7 MΩ color-coded resistor.
Color band system To distinguish left from right there is a gap between the C and D bands: A diagram of a resistor, with four color bands A, B C, D from left to right A diagram of a 27 MΩ color-coded resistor.