Jabarkan silver 10% dari Résistor dalam bahasa sunda

Closer tolerance resistors, called precision resistors, are also available.

Manufacturers will méasure the actual resistance of new resistors and sort them by tolerance according to how close they were to the intended value.  Subsequently, if you buy 100 resistors of the same value with a tolerance of +/- 10%, you won't get some resistors with the correct value, some off by a little and the worst off by 10%... what you'll probably find if you méasure them, is that about half of the resistors are between 5% and 10% too low in value, and the other half are between 5% and 10% too high in value.  Those off by less than 5%, would've been marked and sold as more expensive 5% resistors.  This is something to consider when calculating specifications on the components for a project, that all resistors will be "off" by the specified tolerance, and not just the "worse" of them.