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एक कुण्डली 50 Hz आवृत्ति पर `30Omega` का प्रतिरोध तथा `20Omega` प्रेरण प्रतिघात रखती है। यदि 200 वोल्ट, 100 हर्ट्ज का एक प्रत्यावर्ती धारा स्त्रोत कुण्डली में से जोड़ देते है तब कुण्डली में प्रवाहित धारा का मान होगा-
A. 4.0A
B. 8.0A
C. `(20)/(sqrt(13))A`
D. 2.0A

1 Answer

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Best answer
`2pivL=20implies2piL=(20)/(50)`
तथा `I=(v)/(sqrt(R^(2)+omega^(2)L^(2)))=(200)/(sqrt(30^(2)+(2piv^(1)L)^(2)))`

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