A long, coaxial cable, shown in cross-section in the drawing, is made using two conductors that share a common central axis, labeled C. The conductors are separated by an electrically insulating material that is also used as the outer cover of the cable. The current in the inner conductor is 2.0 A directed into the page and that in the outer conductor is 2.5 A directed out of the page. The distance from point C to point A is 0.0015 m; and the distance from C to B is 0.0030 m. The radii a and b of the conductors are 6.0 × 10-4 m and 1.9 × 10-³ m, respectively. What is the magnitude and direction of the magnetic field at point A? (a) 3.3 x 10-5 T, clockwise (b) 3.3 × 10-5 T, counterclockwise (c) 6.8 x 10-5 T, clockwise a What is the magnitude and direction of the magnetic field at point B? (a) 3.3 × 10-5 T, clockwise (b) 3.3 × 10-5 T, counterclockwise (c) 6.8 x 10-5 T, clockwise ·b (d) 6.8 × 10-5 T, counterclockwise (e) 2.7 x 10 T, clockwise (d) 6.8 × 10-5 T, counterclockwise (e) 2.7 x 104T, clockwise B
A long, coaxial cable, shown in cross-section in the drawing, is made using two conductors that share a common central axis, labeled C. The conductors are separated by an electrically insulating material that is also used as the outer cover of the cable. The current in the inner conductor is 2.0 A directed into the page and that in the outer conductor is 2.5 A directed out of the page. The distance from point C to point A is 0.0015 m; and the distance from C to B is 0.0030 m. The radii a and b of the conductors are 6.0 × 10-4 m and 1.9 × 10-³ m, respectively. What is the magnitude and direction of the magnetic field at point A? (a) 3.3 x 10-5 T, clockwise (b) 3.3 × 10-5 T, counterclockwise (c) 6.8 x 10-5 T, clockwise a What is the magnitude and direction of the magnetic field at point B? (a) 3.3 × 10-5 T, clockwise (b) 3.3 × 10-5 T, counterclockwise (c) 6.8 x 10-5 T, clockwise ·b (d) 6.8 × 10-5 T, counterclockwise (e) 2.7 x 10 T, clockwise (d) 6.8 × 10-5 T, counterclockwise (e) 2.7 x 104T, clockwise B
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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How do you solve the second question? When I use the basic equation
B = (magnetic constant)*(current) / (2*R) it does not seem to yield the correct answer (which is supposed to be (b))
Transcribed Image Text:A long, coaxial cable, shown in cross-section in the
drawing, is made using two conductors that share a common
central axis, labeled C. The conductors are separated by an
electrically insulating material that is also used as the outer
cover of the cable. The current in the inner conductor is 2.0
A directed into the page and that in the outer conductor is
2.5 A directed out of the page. The distance from point C to
point A is 0.0015 m; and the distance from C to B is 0.0030
m. The radii a and b of the conductors are 6.0 × 10-4 m and
1.9 × 10-³ m, respectively.
X
What is the magnitude and direction of the magnetic field at point A?
(a) 3.3 × 10-5 T, clockwise
(b) 3.3 × 10-5 T, counterclockwise
(c) 6.8 x 10-5 T, clockwise
a
What is the magnitude and direction of the magnetic field at point B?
(a) 3.3 x 10-5 T, clockwise
(b) 3.3 × 10-5 T, counterclockwise
(c) 6.8 x 10-5 T, clockwise
b
(d) 6.8 x 10-5 T, counterclockwise
(e) 2.7 x 10 T, clockwise
(d) 6.8 x 10-5 T, counterclockwise
(e) 2.7 x 104T, clockwise
B
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