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**Unformatted text preview: **u is as found in the unmagnetized case and B = C u , where C = const. Do you think this solution is consistent with frozen-in? Explain. 5. Suppose the sphere is an excellent conductor and it was introduced into the flow field quickly enough that B = 0 inside it for quite some time. From the Maxwell eqn .B = 0, what is the jump condition on B at the plasma-conductor interface? Box it. If so, is your solution to B found in 4 consistent with this? Thus, do we have a true steady state? What are the currents that must flow inside the sphere? Box it. 6. (optional) Suppose the sphere is an insulator. Then there can be no currents inside, but there may be a non zero vacuum field inside. Is your outside solution for B as found now consistent with possible vacuum fields inside? (just give your best guess) Thus, do we have a true steady state in the insulator case?...

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