In this video, we'll know what is Tolerance in Resistor. And the working of the resistor tolerance band.


There are hundreds of different resistors because the resistance-values need to cover the range one ohm to 10 million ohms.

There are also small, medium and large resistors.

An electronics engineer does not have the room to store 10 million different resistors so they make each resistor 5% or 10% higher than the previous.
This reduces the number to about 100 to 200.

TOLERANCE
The first 3 bands indicate the value of the resistor and the 4th band indicates either 5% or 10% tolerance.

All modern resistors are 5% or 2% or 1%. The "old" 10% resistors are no longer made.
Gold = 5%
Silver = 10%

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