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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A small coil of radius r is placed at the centre of a large coil of radius R, where R>>r. The two coils are coplanar. The mutual inductance between the coils is proportional to

A small coil of radius r is placed at the centre of a large coil of radius R, where R>>r. The two coils are coplanar. The mutual inductance between the coils is proportional to

A small coil of radius r is placed at the centre of a large coil of radius R where R>>r. The two coils are coplanar. The mutual inductance between the coils is proportional to