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Question

A semi-circular conducting wire of radius a is moving perpendicular to a uniform magnetic field B with speed of 2v as shown in the figure. The emf induced across the wire is

a त्रिज्या का एक अर्द्ध-वृत्तीय चालक तार चित्रानुसार एकसमान चुम्बकीय क्षेत्र B के लम्बवत् 2v चाल से गतिमान है। तार के सिरों पर प्रेरित वि.वा.ब. है


A
Bva
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B
2Bva
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C
3Bva
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D
2Bva
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Solution

The correct option is B 2Bva
Solution

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