Question

what's happened to the deflection of the needle if the compass is moved away from the copper wire but the current through the same​

Answer 1

Explanation:

what happens to the deflection of the needle if the compass is moved fro,m the copper wire but the current through the wire remains same? ... We see that the deflection in the needle decreases. Thus the magnetic field produced by a given current in the conductor decreases as the distance from it increases

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