The magnetic induction in vacuum at a plane surface of a magnetic is equal to B and the vector B forms an angle θ with the normal n of the surface (Fig. 3.75).
The permeability of the magnetic is equal to μ. Find:
(a) The flux of the vector H through the spherical surface S of radius R, whose centre lies on the surface of the magnetic;
(b) The circulation of the vector B around the square path F with side l located as shown in the figure.

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1B