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Title: Physics for bioscience help Post by: wind on Mar 30, 2017 Consider the cross section of a current carrying wire as shown below. The current is carried by the 2 gray sections (0<r<a,and b<r<c). The current, i = 10 mA, is in the direction out of the page, half of it flowing in the inner wire and half in the outer shell.
a) Assuming that the 3 sections have the same thickness, i.e. (0a) ̅=(ab) ̅=(bc) ̅=1cm, calculate the magnetic field for 0<r<a,a<r<b,b<r<c, and r>c. (Hint: think Ampere’s Law) [6 marks] b)(2/10) Sketch the variation of B vs. r in the diagram below. [4 marks] |