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Q. A mutual inductor consists of two coils $X$ and $Y$ as shown in figure in which one quarter of the magnetic flux produced by $X$ links with $Y$, giving a mutual inductance $M$. What will be the mutual inductance when $Y$ is used as the primary?Physics Question Image

Electromagnetic Induction

Solution:

The mutual inductance $M$ remains the same whether $X$ or $Y$ is used as the primary.