Computer · Electrical Earthing
प्लेट अर्थिंग (plate earthing) के लिए, गैल्वेनाइज्ड लोहे या स्टील प्लेट की मोटाई किससे कम नहीं होनी चाहिए?
- 14.30 mm
- 25.30 mm
- 33.30 mm
- 46.30 mm✓
सही उत्तर देखें
6.30 mm
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