Week 5 (Sep 22-26): We're deviating a bit from Griffiths Ch 7 (before continuing on with 7.3 next week), to learn about inductors in circuits.

Maxwell

The largest man-made B-field (that I know of) is the CMS superconducting magnet at CERN's LHC. It's a solenoidal magnet with a central field of ~4 T. The inductance of the magnet is a whopping 14 Η, (I=19,500 A) giving a stored energy of 2.66 GJ, equivalent to ~half-a-ton of TNT (enough energy to melt ~20 tons of gold). If the magnet's coils were to "quench" (stop superconducting), without extraordinary safety measures this energy would be suddenly released, largely in the form of Ohmic heating - not good!

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