1. The electric field of the material between two coaxial cables of radius 0.525 cm and 0.675 cm is given as E= (2.85 V•m) / r3. If the conductivity of the material is 5 x 1010 S/m, what is the current density in the material?2. A cell has a terminal voltage of 50.0 V for a current of 10.0 A, and 54 V for a current of 6.0 A. Find the electromotive force and internal resistance of the cell.

2. Given data: The terminal voltage for the first cell is V1 = 50 V. The current in the first cell…

Answered: A cell has a terminal voltage of 50.0 V…

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter27: Current And Resistance

Section: Chapter Questions

Problem 27.22P: If the current carried by a conductor is doubled, what happens to (a) the charge carrier density,...

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1. The electric field of the material between two coaxial cables of radius 0.525 cm and 0.675 cm is given as E= (2.85 V•m) / r³. If the conductivity of the material is 5 x 10¹⁰ S/m, what is the current density in the material?

2. A cell has a terminal voltage of 50.0 V for a current of 10.0 A, and 54 V for a current of 6.0 A. Find the electromotive force and internal resistance of the cell.

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