c) with a current of I in the opposite direction (Figure 2). Assume that the currents are distributed uniformly over the cross sections of each conductor. i. Derive an expression for the magnitude and direction of the magnetic field at point a c. iv. What is the advantage of using the coaxial cable as compared to a long straight wire?
c) with a current of I in the opposite direction (Figure 2). Assume that the currents are distributed uniformly over the cross sections of each conductor. i. Derive an expression for the magnitude and direction of the magnetic field at point a c. iv. What is the advantage of using the coaxial cable as compared to a long straight wire?
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Transcribed Image Text:c) with a current of I in the opposite direction (Figure 2). Assume that the currents are
distributed uniformly over the cross sections of each conductor.
i. Derive an expression for the magnitude and direction of the magnetic field at
point a <r<b.
ii. Derive an expression for the magnitude and direction of the magnetic field at
point b<r<c.
111.
iv.
Derive an expression for the magnitude and direction of magnetic field at a point
outside of the coaxial cable r > c.
What is the advantage of using the coaxial cable as compared to a long straight
wire?
a
b
С
Figure 2
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