Which one of these may increase the amount of contact resistance?Lower temperature during matching of materialsdecreasing pressure for pressing the materials togetherHigher surface roughnessAll of the aboveUsing air as a fluid for the gap instead of liquids

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Which one of these may increase the amount of contact resistance? O Lower temperature during matching of materials O decreasing pressure for pressing the materials together O Higher surface roughness O All of the above O Using air as a fluid for the gap instead of liquids

Which one of these may increase the amount of contact resistance? O Lower temperature during matching of materials O decreasing pressure for pressing the materials together O Higher surface roughness O All of the above O Using air as a fluid for the gap instead of liquids

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Metrology of surface finish

In general terms, the application of scientific principles in the study of measurements is known as metrology. When speaking about measurement, it could be of time, length, microstructures, grain structures, internal crystal discontinuities, surface roughness, measurements of angles, height, width, and so on. While coming to the domain of mechanical engineering, metrology is considered the science of measurements of surface finish, length, surface texture, and angles.

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Which one of these may increase the amount of contact resistance?
Lower temperature during matching of materials
decreasing pressure for pressing the materials together
Higher surface roughness
All of the above
Using air as a fluid for the gap instead of liquids

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