Engineering Electromagnetics
Engineering Electromagnetics
9th Edition
ISBN: 9780078028151
Author: Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher: Mcgraw-hill Education,
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Chapter 8, Problem 8.8P

Two conducting strips, having infinite length in the z direction, lie in the xz plane. One occupies the region d/2 and carries surface current density K = K°az ;the other is situated at -( b + d/2) < x < -d/2 and carries surface current density - K0az. (a) Find the force per unit length in z that tends to separate the two strips, (b) Let b approach zero while maintaining constant current, I = K0b, and show that the force per unit length approaches đ�œ‡0I2/(2đ�œ‹d) N/m.a

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