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What should be the reason? Motor produce humming sound.
Opening of one phase
conductors shorted
Earth fault
All of these
All of these
Quick Summary: Practice and solve "What should be the reason? Motor produce humming sound...." for Electrical - Economics for Engineers. The correct answer is Option D: All of these. Detailed step-by-step solution, conceptual clarity, and formulas on Examoogle.
Answer:
Option **(d) **