Start How to test a resistor?

The most common test or measurement is that of the resistance value. All resistors are produced with a specific nominal ohm value. This is the value indicated on the resistor. The real Ohm value will deviate from this value. The difference (in percentage) is the tolerance. By using a simple electronic multimeter, the ohm value is measured. 4-point Ohm meters or a Wheatstone bridge are used for more accurate measurements.