Open-Response Homework Problem 19.2 The wire shown at the right carries a curren

Question

Open-Response Homework Problem 19.2 The
wire shown at the right carries a current of 1
4A.
The segment of the wire is L = 30cm long. Con-
sider the magnetic field at the point P a distance
d = 6cm from the end of the wire as drawn. Nat-
urally, all fields below must be reported as vectors.
Carefully and clearly show all intermediate steps to
your calculations.
(a)[3 pt(s) ]Compute the magnetic field
at P using the infinite straight wire approx-
imation.
(b)[8 pt(s) ]Compute the magnetic field
at point P approximating the segment with
one segment using the finite current ele-
ment approximation.
(c)[8 pt(s) ]Calculate the exact magnetic
field at P starting from the Biot-Savart
Law.
(d)[2 pt(s) ]Do you expect either of the
approximations in parts (a) and (b) to be
very accurate? Why?

Explanation / Answer

Open-Response Homework Problem 19.2 The wire shown at the right carries a curren

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