COLLEGE PHYSICS W/MODIF MAST FOR SSC >
2nd Edition
ISBN: 9781323390719
Author: Knight
Publisher: PEARSON C
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Chapter 22, Problem 59GP
The two segments of the wire in Figure P22.59 have equal diameters and equal lengths but different resistivities ρ1 and ρ2. Current I passes through this wire. If the resistivities have the ratio ρ2/ρ1 = 2, what is the ratio ∆V1/∆V2 of the potential differences across the two segments of the wire?
Figure P22.59
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A copper wire has a square cross section 6.2mm on a side. The wire is 8.0m long and carries a current of 5.2A. The density of free electrons is 8.0x10^28 #/m^3. The resistivity of the copper is: 1.72x10^-8 ohms.m
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For copper: p = 1.72 x10-82. m n = 8.5 x1028/m3
Chapter 22 Solutions
COLLEGE PHYSICS W/MODIF MAST FOR SSC >
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