4200 ohms
20%
what does resistor mean in technolagy
149 ohms, I believe.
R stands for the resistance.
It's a code to tell you the value of the resistance of the resistor.
its Paris France rude du aloa h7g 4k2
You don't, you read the tolerance markings. If you measure the resistor and it is outside the marked tolerance it is bad.
marked.
in simple terms, band represent numbers, ex:- 10K resistor have different colour code and that is difference from 5k resistor. if you type in google 'resistor colour code' that will describe how to calculate a resistor value. thanks
resistor-thermistor
A resistor marked as 90R5, will have a resistance of 90.5 Ohms.The letter denotes where the decimal place should be, as a small dot may become invisible with age.Multipliers are also used for higher values. K=1000, M=1,000,000.As for uses: Resistors are used for limiting current, reducing voltage and providing a load.A resistor marked in this way, would probably be a large ceramic type, with a high working current. possibly used in a power supply.Passing a current through the resistor will create a voltage across it, this can be used for a feedback circuit to control the suppply or limit the current.
If you mean the HVAC fan, the resistor should be located within the fuse block.