What is the reason why the multimeter cannot measure the resistance value when measuring the 5-color ring resistance?
On the five-color ring resistor, the first 3 digits are the effective value, the fourth digit is the multiple, and the last digit is the error. The color sequence of the resistor is black 0, brown 1, red 2, orange 3, yellow 4, green 5, blue. 6, purple 7, gray 8, white 9, gold 10 minus 1 power, silver 10 minus 2 power, colorless.
Suppose yellow orange blue brown gold = 436*10 = 4360 ohms, the error is "plus or minus 5%" and then use a multimeter to measure, if it is within the normal range of this value, the resistance is good, if it exceeds this range, it will be Resistors may have deteriorated.
If there is no resistance value, then the resistor is an open circuit. On the contrary, the multimeter may be broken, please replace it with a new multimeter to measure it.






