13.5 Exercise 1

A conducting sheet lies in a plane perpendicular to a magnetic field $\overset{\rightarrow}{B}$ that is below the sheet. If $\overset{\rightarrow}{B}$ oscillates at a high frequency and the conductor is made of a material of low resistivity, the region above the sheet is effectively shielded from $\overset{\rightarrow}{B}$. Explain why. Will the conductor shield this region from static magnetic fields?