Physics · Electrical Measurements
पृथ्वी के प्रतिरोध (earth resistance) को मापने के लिए मानक रूप से निम्नलिखित में से किस सिद्धांत का उपयोग किया जाता है?
- 1प्रतिरोधकता में गिरावट की विधि
- 2विभव-पतन विधि (Fall-of-potential method)✓
- 3केल्विन डबल ब्रिज सिद्धांत
- 4वाटमीटर विधि
सही उत्तर देखें
विभव-पतन विधि (Fall-of-potential method)
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