In spherical coordinates, a current density J = -k/(r sin 0) ao A/m² exists in a conducting medium, where k is a constant. Determine the total current in the a; direction that crosses a circular disk of radius R, centered on the z axis and located at (a) z = 0; (b) z = h.

In spherical coordinates, a current density J = -k/(r sin 0) ao A/m² exists in a conducting medium, where k is a constant. Determine the total current in the a; direction that crosses a circular disk of radius R, centered on the z axis and located at (a) z = 0; (b) z = h.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

Electric field

A physical field present around an electrically charged particle that exerts a force on all other charged particles is called an electric field. The charged particles present in the field either repel or attract. From electric charges or time-varying magnetic fields, the electric field originates. One of the manifestations of electromagnetic force which is one of the four fundamental forces present in nature are the electric fields and magnetic fields.

Question

5.6 In spherical coordinates, a current density J = –k/(r sin 0) ag A/m² exists in
a conducting medium, where k is a constant. Determine the total current in
the a̟ direction that crosses a circular disk of radius R, centered on the z axis
and located at (a) z = 0; (b) z = h.

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