Before revision: Examples Example color-coded resistors From top to bottom: Green, blue, black, black, brown 56 ohms ±1% Red, red, orange, gold ±5% Yellow, violet, brown, gold 470 ohms ±5% Blue, grey, black, gold 68 ohms ±5% First band - Brown, Second band - Black, Third band - Red, Fourth band - Gold, 1,000 ohms ±5% (1k Resistor) The physical size of a resistor is indicative of the power it can dissipate.
After revision: Examples Example color-coded resistors From top to bottom: Green, blue, black, black, brown 56 ohms ±1% Red, red, orange, gold ±5% Yellow, violet, brown, gold 470 ohms ±5% Blue, grey, black, gold 68 ohms ±5% Brown, black, red, gold 1,000 ohms ±5% (1k Resistor) The physical size of a resistor is indicative of the power it can dissipate.