Advantages of Rectifier Instruments

       The various advantages of rectifier instruments are,
1- Compared to other a.c. instruments can be used for the frequency range extending from 20 Hz to high audio frequencies (20 kHz).
2- Have much lower operating current for voltmeters.
3- Have very low power consumption.
4- Practically have uniform scale for all ranges.
5- The accuracy is high about ±5% under normal operating conditions.
6- The sensitivity is very high.

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