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Current Loop Is a Magnet?

Two coils of ...

Question

Two coils of wire $A$ and $B$ are placed mutually perpendicular as shown in figure.When current is changed in any one coil, will the current. induce in another coil ? Justify

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Solution

No; this is because the magnetic field due to current in coil $(A$ or $B)$ will be parallel to the plane of the other coil $(A$ or $B)$ . Hence, the magnetic flux linked with the other coil will be zero and so no current will be induced in it.

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