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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
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.
Option **(d) **