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FIGURE 28-8 -Fig. 28-8 Shows the Cross-Section of a Hollow Cylinder of Hollow

Question 40

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FIGURE 28-8 FIGURE 28-8 -Fig. 28-8 shows the cross-section of a hollow cylinder of inner radius a = 5 cm and outer radius b = 7 cm. A uniform current density j = 1 A/ cm<sup>2</sup> flows through the cylinder. Calculate the magnitude of the magnetic field at a distance d = 10 cm from the axis of the cylinder. A) 0 B) 1.5 × 10<sup>-4</sup> T C) 2.5 × 10<sup>-4</sup> T D) 4.5 × 10<sup>-4</sup> T E) 0.5 × 10<sup>-4</sup> T
-Fig. 28-8 shows the cross-section of a hollow cylinder of inner radius a = 5 cm and outer radius b = 7 cm. A uniform current density j = 1 A/ cm2 flows through the cylinder. Calculate the magnitude of the magnetic field at a distance d = 10 cm from the axis of the cylinder.


A) 0
B) 1.5 × 10-4 T
C) 2.5 × 10-4 T
D) 4.5 × 10-4 T
E) 0.5 × 10-4 T

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