Two conducting circular loops of radii R1 and R2 are placed in the same plane with their centres coinciding. If R1 >> R2, the mutual inductance M between them will be directly proportional to :
${{R_2^2} \over {{R_1}}}$
${{{R_1}} \over {{R_2}}}$
${{{R_2}} \over {{R_1}}}$
${{R_1^2} \over {{R_2}}}$
Solution
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