Question:
Two coils of lengths 1 1 and of diameters d d have the same
Last updated: 6/11/2023
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Two coils of lengths 1 1 and of diameters d d have the same number of turns N they carry the same current I For the first coil 1 d but for the second l2 d Show that the magnetic fields at their centres will be in the ratio d 1