figure 32-27 shows a closed surface. along the flat top face, which has a radius of 2.0 cm, a perpendicular magnetic field of magnitude 0.30 t is directed outward. along the flat bottom face, a magnetic flux of 0.70 mwb is directed outward. what are the (a) magnitude and (b) direction (inward or outward) of the magnetic flux through the curved part of the surface?