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Observe the following figure. If the cur...

Observe the following figure. If the current in the coil A is changed, will some current be induced in the coil B? Explain.

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If the current in the coil A is changed, there will be some current induced in the coil B. Explanation : When the current in the coil A is changed, the magnetic fleld associated with the current changes. This induces potential differened in the coil B. This gives rise to (Le., induces) current in the coll B. The greater the rate at which the current in the coil A is changed with respect time, the greater is the current induced in the coil B as can be seen from the deflection of the pointer in the galvanometer. This phenomenon is known as electromagnetic induction.
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