Tutorial Exercise A cube of edge length { = 2.10 cm is positioned as shown in the figure below. A uniform magnetic field given by B = (4.6î + 4.0j + 3.0k) T exists throughout the region. (a) Calculate the magnetic flux through the shaded face. (b) What is the total flux through the six faces?

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Chapter24: Magnetic Fields
Section: Chapter Questions
Problem 98A
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Tutorial Exercise
A cube of edge length { = 2.10 cm is positioned as shown in the figure below. A uniform magnetic field given
by B = (4.6î + 4.0j + 3.0k) T exists throughout the region.
(a) Calculate the magnetic flux through the shaded face.
(b) What is the total flux through the six faces?
Part 1 of 4 - Conceptualize
For the flux through the shaded face of the cube, we estimate a value on the order of 10-4 T - m2. For the
total flux through the six faces, we estimate zero flux due to the uniformity of the field and the fact that the
cube is a closed surface.
Part 2 of 4 - Categorize
We will use the definition of magnetic flux.
Part 3 of 4 - Analyze
The flux is defined as dg = B - A, so we have the following.
PB = BXAX + ByAy + BZAZ
(a) The area of the shaded square is in the yz plane, so it is an x component of the area. For this component,
Ay = Az = 0, we have
OB = ByAx
(No Response)
4.6 T)(
(No Response)
m) = (No Response)
2.03 х 10-3 т- m2,
Part 4 of 4 - Analyze
(b) For a closed surface, we have
B - B = 0
so the total flux through the six faces of the cube is
OB =
T:m².
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Transcribed Image Text:Tutorial Exercise A cube of edge length { = 2.10 cm is positioned as shown in the figure below. A uniform magnetic field given by B = (4.6î + 4.0j + 3.0k) T exists throughout the region. (a) Calculate the magnetic flux through the shaded face. (b) What is the total flux through the six faces? Part 1 of 4 - Conceptualize For the flux through the shaded face of the cube, we estimate a value on the order of 10-4 T - m2. For the total flux through the six faces, we estimate zero flux due to the uniformity of the field and the fact that the cube is a closed surface. Part 2 of 4 - Categorize We will use the definition of magnetic flux. Part 3 of 4 - Analyze The flux is defined as dg = B - A, so we have the following. PB = BXAX + ByAy + BZAZ (a) The area of the shaded square is in the yz plane, so it is an x component of the area. For this component, Ay = Az = 0, we have OB = ByAx (No Response) 4.6 T)( (No Response) m) = (No Response) 2.03 х 10-3 т- m2, Part 4 of 4 - Analyze (b) For a closed surface, we have B - B = 0 so the total flux through the six faces of the cube is OB = T:m². Submit Skip (you cannot come back)
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