D5.2. Current density is given in cylindrical coordinates as J = -10°z15a, A/m? in the region 0spS 20 µm; for p 2 20 um, J = 0. (a) Find the total current crossing the surface z = 0.1 m in the a, direction. (b) If the charge velocity is 2 x 106 m/s at z = 0.1 m, find p, there. (c) If the volume charge density at z = 0.15 m is -2000 C/m³, find the charge velocity there. Ans. –39.7 µA; -15.8 m C/m?; 29 m/s

D5.2. Current density is given in cylindrical coordinates as J = -10°z15a, A/m? in the region 0spS 20 µm; for p 2 20 um, J = 0. (a) Find the total current crossing the surface z = 0.1 m in the a, direction. (b) If the charge velocity is 2 x 106 m/s at z = 0.1 m, find p, there. (c) If the volume charge density at z = 0.15 m is -2000 C/m³, find the charge velocity there. Ans. –39.7 µA; -15.8 m C/m?; 29 m/s

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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