Resistance is classified into three categories for the sake of Measurement. Different categories of Resistance are measured by the different techniques. They are classified as
Low Resistance: Resistance having value 1Ω or below are kept under this category.
Medium Resistance: This category includes Resistance from 1Ω to 0.1 MΩ.
High Resistance: Resistance of the order of 0.1 MΩ and above is classified as High resistance.
The different methods used for the measurement of Low resistance are as follows:
- Kelvin’s Double bridge method
- Potentiometer method
- Ducter ohmmeter
The different methods used for the measurement of Medium resistance are as follows:
The different methods used for the measurement of High resistance are as follows:
- Direct deflection method
- Loss of charge method
- Megohm bridge