Resister

Resister is denoted by " R "

Function : To oppose the flow of current

Unit of Resister : ohm,

1. 1000ohm = 1k ohm
2. 1000k ohm = 1m ohm
3. 1000m ohm = 1g ohm                         

Types:

1. Analog
2. Digital

Analog:

Examples

3 bands:

Yellow, violet, black --> 47 ohm 20%

Orange, orange, brown --> 330 ohm 20%

Brown, black, red --> 1k 20%

4 bands:

Green, blue, red, gold --> 5.6kohm 5%

Red, yellow, orange, gold --> 24kohm 5%

Blue, gray, yellow, silver --> 680k 10%

More 4 band resistor color code

5 bands:

Red, yellow, orange, black, brown --> 243 ohms, 1% precision 5-band resistor

Yellow, violet, GOLD, gold, yellow --> 4.7 ohms, 5% - this resistor is calculated with the 4-band rule (the yellow band is ignored).

Orange, black, black, brown, brown --> 3.00 k ohms, 1% - note: this is a non-standard 1% (E96) resistor, but some manufacturers make every value from the E24 series with 1% tolerance!

More: 5 band

6 bands:

Red, red, brown, brown, brown, red --> 2.21k, 1% 50ppm/°C

White, black, white, brown, red, red --> 9.09k, 2% 50ppm/°C

- do not enter the last band (red in the two examples above)

Color Code:

Digital:

Checking Process : 

100ohm = 95 ohm, 105 ohm is ok

Damage condition  

1. < 95 ohm
2. No Value
3. Beep or 000