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There are two coils A and B separated by some distance. If a current of 2 A flows through A, a magnetic flux of 10^(-2) Wb passes through B (no current through B). If no current passes through A and a current of 1 A passes through B, what is the flux through A ? |
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Answer» Solution :As PER question initially `I_(A) = 2 A, I_(B) = 0 and phi_(B) = 10^(-2)` Wb. As per relation `phi_(B) = Ml_(A)`, we have `M = (phi_(B))/I_(A) = 10^(-2)/2 =xx 10^(-3)H` Finally `l._(A) = 0, I._(B) = 1 A`. Hence, magnetic flux passing through A will be `phi._(A) = MI._(B) = (5 xx 10^(3)) xx 1 = 5 xx 10^(-3)Wb.` |
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