contestada

If we immerse a circular coil of 190 mm diameter into a material of relative permeability of 3 and the coil conducts a current of 8a, find the magnetic induction at the center of the coil

Respuesta :

a)

[tex]B=\frac{\mu\mu_0 I}{D}=1.6\cdot 10^{-4}~T,[/tex]

b)

[tex]B=\mu_0I\frac N{2\pi r}=9.6\cdot 10^{-4}~T.[/tex]

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