PHYS208 Fundamentals of Physics II

Answer for Ch. 30, 47P

a) (mu0 i r)/(2 pi c2)

b) (mu0 i)/(2 pi r)

c) (mu0 i)/(2 pi r)*(a2-r2)/(a2-b2)

d) zero

e) When r = c, the formula for a) should give the same result as the formula for b).
When r = b, the formula for b) should give the same result as the formula for c).
When r = a, the formula for c) should give zero.


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Last updated Oct. 29, 1997.
Copyright George Watson, Univ. of Delaware, 1997.