a X Jn Jn n n There are two long co axial solenoids of same length 1 The inner and outer coils have radii r and r2 and number of

Question

a X Jn Jn n n There are two long co axial solenoids of same length 1 The inner and outer coils have radii r and r2 and number of turns per unit length n and n respectively The rate of mutual inductance to the self inductance of the inner coil is JEE Main 2019 a 2 n2 r2 2 ni ri n Tot 1 d b 2 r1 n1 r2 n d n

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