Question

Why the conductor must be in
the shape of coil

Answer 1

.bus aise hi maja ata hai

Answer 2

A current through any conductorcreates a circular magnetic field around the conductor due to Ampere's law. The advantage of using the coil shape is that it increases the strength ofmagnetic field produced by a given current. ... The end of amagnetic core from which the field lines emerge is defined to be the North pole.



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