0
votes
1answer
137 views

How does this heavily oxidized copper-to-steel joint work in earthing?

Wikipedia article on grounding features this photo: Here's a close-up of the joint: Clearly the steel rod is heavily oxidized and the copper wire is oxidized. The clamp is coated with something ...
7
votes
4answers
537 views

How to know that I am grounded with an anti-static wrist strap?

The resistance of my Belkin anti-static wrist strap shows 0.983, but how do I know that I am grounded by attaching it to computer power supply alone? See the picture below. How do I know if that ...