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Home / Doubts and Solutions/JEE/Physics

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Asked by rbhatt16 19th July 2018, 9:39 AM
Answered by Expert
Answer:
From Farday's law, magnitude of induced emf is |ε| = Δφ/Δt , where φ is flux
 
also we have,
 begin mathsize 12px style open vertical bar epsilon close vertical bar space equals space i cross times R space equals fraction numerator increment ϕ over denominator increment t end fraction space space o r space space space space space i cross times increment t space equals space fraction numerator increment ϕ over denominator R end fraction space space space space o r space space space space space space increment Q space equals space fraction numerator increment ϕ over denominator R end fraction space increment ϕ space equals space c h a n g e space i n space F l u x space equals space increment open parentheses B cross times A close parentheses space equals space A cross times increment B space equals space A cross times fraction numerator mu subscript o space n space I over denominator 2 cross times r end fraction h e n c e space increment Q space equals space fraction numerator mu subscript o space n space I space A over denominator 2 space r space R end fraction end style
Answered by Expert 26th July 2018, 4:46 PM
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