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किसी प्रत्यावर्ती परिपथ में धारा और ...

किसी प्रत्यावर्ती परिपथ में धारा और विभवांतर के मध्य कला सम्बन्ध बताओं जब (i) ` f = f _r`, (ii) ` f lt f _r` , (iii) ` f gt f _r ` यहाँ `f _ r ` अनुनादी आवृत्ति है |

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