일반물리학 2 — Maxwell's Equations; Magnetism of Matter: Problem 51

51 The magnetic flux through each of five faces of a die (singular of “dice”) is given by \(\Phi_B = \pm 2N \text{ Wb}\), where \(N (= 1 \text{ to } 5)\) is the number of spots on the face. The flux is positive (outward) for \(N\) even and negative (inward) for \(N\) odd. What is the flux through the sixth face of the die?