8. Two hypothetical materials A and B have the following conductivities: A = 3 x 105 (cm)-¹; B = 12 x 105 (cm)-1 Glass slide #1 is coated with a 10 µm thick film of A. Glass slide #2 is coated with a 2 um thick film of B. The geometry of the sample is shown in Figure 1. Calculate the resistance and resistivity for the films on both glass slides. Show your workings.

8. Two hypothetical materials A and B have the following conductivities: A = 3 x 105 (cm)-¹; B = 12 x 105 (cm)-1 Glass slide #1 is coated with a 10 µm thick film of A. Glass slide #2 is coated with a 2 um thick film of B. The geometry of the sample is shown in Figure 1. Calculate the resistance and resistivity for the films on both glass slides. Show your workings.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.73P: Estimate the R-values for a 5-cm-thick fiberglass board and a 2.5-cm-thick polyurethane foam layer....

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