Two circular coils A and B are placed closed to each other. If the current in the coil A is changed, will some current be induced in the coil B? Give reason.
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Yes, current will be induced in the coil B. This happens because when current changes in A, the magnetic field produced by the current also changes. When the changing magnetic field is experienced by B it induces a current to oppose the field.
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Explanation:
Two circular coils A and B are placed close to each other. When the current in coil A is changed, the magnetic field associated with it also changes. As a result, the magnetic field around coil B also changes. This change in magnetic field lines around coil B induces an electric current in it. This is called electromagnetic induction.
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