Contact resistance

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Notion

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Science and technology

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What Wikipedia says

Electrical contact resistance (ECR, or simply contact resistance) is resistance to the flow of electric current caused by incomplete contact of the surfaces through which the current is flowing, and by films or oxide layers on the contacting surfaces.

Excerpt from the Wikipedia article “Contact resistance”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Martin Weis, CC BY-SA 3.0, via Wikimedia Commons.