correctly. I don't want to waste a question = money. Thanks.  Two flat surfaces are exposed to a uniform, horizontal magnetic field of magnitude 0.22 T. When viewed edge-on, the first surface is tilted at an angle of 19° from the horizontal, and a net magnetic flux of 6.1 x 10^(-4) Wb passes through it. The same net magnetic flux passes through the second surface.  (a) Determine the are of the first surface. (b) Find the smallest possible value of the are of the second surface.

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Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.