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V WileyPLUS C Secure I https://edugen.wileyplus.com/edugen/student/mainfr.uni WileyPLUS Halliday, Fundamentals of Physics, 10e Calculus-based Physics for Scientist% & Fnginners (PHYS 2 1 1 / 21 2) Homc Read, Study& Practice Gradcbk ORTON Dowmloadahle cTexthook AsaignmenL>Open Assigment ASSIGNMENT RESOURCES Chapter 26, Proble 056 0.0100 in.). Calculate (a) the current, (b) the magnitude of the current density, (c) the magnitude of the A potential difference of 1.12 will be applied to a 21.6 m length of 13-gauge copper wire (diameter cloctric field within the wirc, and (d) the rate at which thermal cnergy will appear in the wire (a) Numbor Units Units (c) Number (d) Numbrer Click i you would like to Show Work for this question Chapter 7h, emblem Inits Ope Shaw Vark LINK TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM LINK T Chapter 7h, emblem Qucstion Attempts: of 10 uscd SAV rOR LATTR SUBNI T ANSWER All Rights Resser ved. A Dvi of Jahr Wiley&ausI; Vesiuri 4.24.1.13 215 AM ,1,6/201 Search the web and Windows

Explanation / Answer

A.

Using ohm's law:

V = i*R

R = rho*L/A

i = V*A/(rho*L)

r = 0.02 in = 0.000508 m

i = 1.12*pi*(0.000508)^2/(1.69*10^-8*24.6)

i = 2.184 Amp.

B.

J = i/A = 2.184/(pi*(0.000508)^2)

J = 2693861.95 Amp./m^3

C.

E = V/d

E = 1.12/24.6 = 0.0455 V/m

D.

P = V*i

P = 1.12*2.184 = 2.4461 W

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