विधुत धारा का चुम्बकीय प्रभाव सर्वप्रथम अवलोकित किया गया?

Asked Sep 10, 2023 Modified Sep 10, 2023 Viewed 0 times
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asked Sep 10, 2023 at 12:27
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ओर्स्टेड द्वारा
answered Sep 10, 2023 at 12:27

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