If we have a material with the same electrical properties in all directions, we define its resistivity p (the Greek letter "rho") as the ratio of E the magnitudes of the electric field E and the current density J: !! In vector form, The SI unit of resistivity is one-ohm meter (1 O:m, where the Greek letter "omega" stands for "ohm"). One ohm equals one volt per ampere (1 0 = 1 VIA). For many materials and devices, Georg Simon Ohm found that J is directly proportional to E at a given temperature. If so, p is constant and we say that the material or device follows Ohm's Law or that it is ohmic. Calculate the resistivity of a certain metal if an electric field of 7.2 x 10-3 V/m gives a current density of 1.20 x 105 A/m2 6.0 x 10-8 ohm-m 7.2 103 ohm-m O 12x 105 ohm-m 0.17 x 102 ohm-m Click Save and Submit to save and submit. Click Save All Ansuwers to save all answers.

If we have a material with the same electrical properties in all directions, we define its resistivity p (the Greek letter "rho") as the ratio of E the magnitudes of the electric field E and the current density J: !! In vector form, The SI unit of resistivity is one-ohm meter (1 O:m, where the Greek letter "omega" stands for "ohm"). One ohm equals one volt per ampere (1 0 = 1 VIA). For many materials and devices, Georg Simon Ohm found that J is directly proportional to E at a given temperature. If so, p is constant and we say that the material or device follows Ohm's Law or that it is ohmic. Calculate the resistivity of a certain metal if an electric field of 7.2 x 10-3 V/m gives a current density of 1.20 x 105 A/m2 6.0 x 10-8 ohm-m 7.2 103 ohm-m O 12x 105 ohm-m 0.17 x 102 ohm-m Click Save and Submit to save and submit. Click Save All Ansuwers to save all answers.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

Question

If we have a material with the same electrical properties in all
directions, we define its resistivity p (the Greek letter "rho") as the ratio of
the magnitudes of the electric field E and the current density J: 0=
In vector form,
The SI unit of resistivity is one-ohm meter (1 Q-m, where the Greek letter
"omega" stands for "ohm"). One ohm equals one volt per ampere (1 0 = 1
VIA). For many materials and devices, Georg Simon Ohm found that J is
directly proportional to E at a given temperature. If so, p is constant and we
say that the material or device follows Ohm's Law or that it is ohmic.
е
Calculate the resistivity of a certain metal if an electric field of 7.2 x
10-3 V/m gives a current density of 1.20 x 105 A/m2
he
6.0 x 10-8 ohm-m
7.2 103 ohm-m
ware
O 1.2 x 105 ohm-m
izo.
0.17 x 102 ohm-m
icrosoft
Teams
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