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प्रश्न
According to oersted, around a current carrying conductor, magnetic field exists ______.
विकल्प
- as long as there is current in the wire
- even after removing the current in the wire.
- only few seconds after removing the current.
- None of these
MCQ
रिक्त स्थान भरें
उत्तर
According to oersted, around a current carrying conductor, magnetic field exists as long as there is current in the wire.
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