52.(a) We use~τ=~µ×~B, where~µpoints into the wall (since the current goes clockwise around the clock).Since~Bpoints towards the one-hour (or “5-minute”) mark, and (by the properties of vector crossproducts)~τmust be perpendicular to it, then (using the right-hand rule) we Fnd
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.