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Question
A small square loop of wire of side l is placed inside a large square loop of side L (L >> l). The loop is coplanar and their centers coincide. The mutual inductance of the system is proportional to is
Options
`"l"/"L"`
`"l"^2/"L"`
`"L"/"l"`
`"L"^2/"l"`
MCQ
Solution
`"l"^2/"L"`
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Magnetic Field on the Axis of a Circular Current Loop
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