A solenoid must be produced that has a magnetic flux density of 25 Wb/m2 . The coil for the solenoid has 200 loops in a distance of 2 cm, and the maximum current for the wire is 1A. Select a suitable material for this solenoid from the materials listed that you expect to be cost effective.
(a) Calculate the magnetic field created by a coil made of copper wire that
has 200 turns in 5 cm and carries a current of 5 A.
(b) What is the magnitude of the flux density or inductance created by this coil in a vacuum?
mild steel is suitable with a relative permeability of 2000, and it is cost
effective.
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