A "unipolar" generator consists of a copper disk of radius R. rotating in a uniform, steady magnetic field B perpendicular to the disk, out of the page (see the figure below). (The magnetic field is produced by large coils carrying constant current, not shown in the diagram.) Sliding contacts are made at the center (on the axle) and at the rim of the disk, and the wires are connected to a voltmeter. Uniform, steady B, out of page Radius R Voltmeter (a) Draw the charge distribution. (b) Explain your reasoning.

A "unipolar" generator consists of a copper disk of radius R. rotating in a uniform, steady magnetic field B perpendicular to the disk, out of the page (see the figure below). (The magnetic field is produced by large coils carrying constant current, not shown in the diagram.) Sliding contacts are made at the center (on the axle) and at the rim of the disk, and the wires are connected to a voltmeter. Uniform, steady B, out of page Radius R Voltmeter (a) Draw the charge distribution. (b) Explain your reasoning.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter33: Single-phase Motors

Section: Chapter Questions

Problem 36RQ

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