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Q)

There are two coils A and B separated by some distance. If a current of 2A flows through A, a magnetic flex of 102 wb passes through B (no current through B). If no current passes through A and a current of 1A passes through B, what is the flex through A?


(a) 5×103wb
(b) 5×103wb
(c) 5×102wb
(d) 5×102wb
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