A solid infinitely long conducting cylinder of radius R = 40 cm has a cylinder of radius R/4 gouged out of it as in Figure. The conductor carries a current = 20 Auniformly over its cross section which is directed out of the page. What is the magnetic field at point A at a distance R from the center? %3D %3D (Ho = 4nx10-7T.m/A). %3D

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Chapter12: Sources Of Magnetic Fields
Section: Chapter Questions
Problem 57P: A toroid with a square cross section 3.0cm3.0cm has an inner radius of 25.0 cm. It is wound with 500...
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19)
neli
A
y
R/4
ar
A solid infinitely long conducting cylinder of radius R = 40 cm has a cylinder
of radius R/4 gouged out of it as in Figure. The conductor carries a current
I, = 20 A uniformly over its cross section which is directed out of the page. What
is the magnetic field at point A at a distance R from the center?
(Ho
= 4nx10-7T.m/A).
A) BA = -10.2 î + 0.32 j (uT)
B) BA = -81.92 î+2.56 f (uT)
C) BA =-25.6 i +0.80 j (uT)
D) BA=-85.3i+26.6f (HT)
E) BA=-122.88 i + 3.84 (HT)
---E
Transcribed Image Text:19) neli A y R/4 ar A solid infinitely long conducting cylinder of radius R = 40 cm has a cylinder of radius R/4 gouged out of it as in Figure. The conductor carries a current I, = 20 A uniformly over its cross section which is directed out of the page. What is the magnetic field at point A at a distance R from the center? (Ho = 4nx10-7T.m/A). A) BA = -10.2 î + 0.32 j (uT) B) BA = -81.92 î+2.56 f (uT) C) BA =-25.6 i +0.80 j (uT) D) BA=-85.3i+26.6f (HT) E) BA=-122.88 i + 3.84 (HT) ---E
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