13 - At 20 °C, a copper wire has a diameter of 4 mm, a length of 20m, a resistivity of 1.7x10-8 am and has a uniformcurrent density /=0.1×105 A/m?. what is the potential difference between the two ends of the wire?a)0.084 Vb)0.024 V0.034 V904060.063 V0.048 VLeave blank

Answered: Image /qna-images/answer/24cdb0f8-c5f3-441c-a306-1b0953f6cab0.jpg

13- At 20 °C, a copper wire has a diameter of 4 mm, a length of 20m, a resistivity of 1.7×10-8 2m and has a uniform current density J=0.1×10€ A/m². What is the potential difference between the two ends of the wire? a) 0.084 V b) 0.024 V 0.034 V 0.063 V 9040610 e) 0.048 V Leave blank

13- At 20 °C, a copper wire has a diameter of 4 mm, a length of 20m, a resistivity of 1.7×10-8 2m and has a uniform current density J=0.1×10€ A/m². What is the potential difference between the two ends of the wire? a) 0.084 V b) 0.024 V 0.034 V 0.063 V 9040610 e) 0.048 V Leave blank

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 58AP

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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

Question

13 - At 20 °C, a copper wire has a diameter of 4 mm, a length of 20m, a resistivity of 1.7x10-8 am and has a uniform
current density /=0.1×105 A/m?. what is the potential difference between the two ends of the wire?
a)
0.084 V
b)
0.024 V
0.034 V
90406
0.063 V
0.048 V
Leave blank

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