2.2k ohm resistor color code
2.2k resistor color code of the ¼ watt resistors is explained here, quicker resistor color coding is always useful for every electronic engineer.
2.2k resistor color code of 4 band resistor, which is first 2 color bands is digits, 3rd color band is a multiplier and the last 4th band is tolerance band.
1stcolor RED = 2 (digit)
2ndcolor RED = 2 (digit)
3rdcolor RED = 2 (MULTIPLIER)
4thcolor GOLD = 5% (TOLERANCE)
2.2k resistors are the decimal resistance value, comparing with digit value, 2.2k is much specific.
The first two RED bands are taken as digits
And the third band is a multiplier
= 2.2kohm 5%
This decimal value is produced, when the multiplier value is divided by 1000 and also decimal come into play, then that zero make a decimal value between both twos.