Coefficient of coupling between two coils of self-inductances `L_(1)` and `L_(2)` is unity. It meansA. `50%` flux of `L_(1)` is linked with `L_(2)`B. `100%` flux of `L_(1)` is linked with `L_(2)`C. `sqrt(L_(1))` time of flux of `L_(1)` is linked with `L_(2)`D. None of the above

Coefficient of coupling between two coils of self-inductances `L_(1)`

1.	Coefficient of coupling between two coils of self-inductances `L_(1)` and `L_(2)` is unity. It meansA. `50%` flux of `L_(1)` is linked with `L_(2)`B. `100%` flux of `L_(1)` is linked with `L_(2)`C. `sqrt(L_(1))` time of flux of `L_(1)` is linked with `L_(2)`D. None of the above
Answer» Correct Answer - B Two coils ace said to be magnetically coupled, if full or a part of the flux produced by one link with the other. Let `L_(1)` and `L_(2)` be the self-inductances of the coils and M be their mutual inductances, then `k=(M)/(sqrt(L_(1)L_(2))` When `100%` flux produced by one coil links with the other, then mutual inductance between the two is maximum and is given by `Msqrt(L_(1)L_(2))`

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Coefficient of coupling between two coils of self-inductances `L_(1)` and `L_(2)` is unity. It meansA. `50%` flux of `L_(1)` is linked with `L_(2)`B. `100%` flux of `L_(1)` is linked with `L_(2)`C. `sqrt(L_(1))` time of flux of `L_(1)` is linked with `L_(2)`D. None of the above

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