Electrical Engineering · Electrical Installation and Safety
घरेलू विद्युत तारों (installations) में, नियंत्रण स्विच को हमेशा किससे जोड़ा जाना चाहिए?
- 1न्यूट्रल या अर्थ तार में से किसी से भी
- 2अर्थ तार से
- 3फेज (लाइव) तार से✓
- 4न्यूट्रल तार से
सही उत्तर देखें
फेज (लाइव) तार से
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