Calibration of ammeter and voltmeter by potentiometer
- https://www.govinfo.gov/content/pkg/GOVPUB-C13-de3deba65157b29e94808d389a27adb2/pdf/GOVPUB-C13-de3deba65157b29e94808d389a27adb2.pdf
- https://srmvdpcsea2016.files.wordpress.com/2016/09/experiment-61.pdf
- https://www.labappara.com/product/calibration-of-voltmeter-and-ammeter-by-dc-potentiometer/?wpp_export=pdf
- https://www.nvistech.com/technical-training/physics/calibration-of-voltmeter-and-ammeter-using-potentiometer