An infinite sheet of current sits on the xy plane with free space above and below the sheet. The surface current density on this sheet is Js=x20 mA/m. What is the magnetic energy stored within a volume of 1 cubic meter above the infinite sheet of current? a. 62.8pJ b. 1.26pJ c. None of the others d. 6.285pJ e. 25.1pJ


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