일반물리학 2 — Maxwell's Equations; Magnetism of Matter: Problem 33

33 A Gaussian surface in the shape of a right circular cylinder with end caps has a radius of 5.60 cm and a length of 80.0 cm. Through one end there is an inward magnetic flux of 25.0 μWb. At the other end there is a uniform magnetic field of 1.60 mT, normal to the surface and directed outward. What are the (a) magnitude and (b) direction (inward or outward) of the net magnetic flux through the curved surface?