DaveE's latest activity

Isolated systems are used for safety on construction sites etc. A transformer is used where the secondary is not connected to earth. A...

It works better if you search for knowledge, not just answers. But kudos for recognizing that you must verify the information you find...

Because a common ground connection protects the insulation, by preventing overvoltage, that might break it down.

Perhaps a better schematic would help:

The voltage at B wrt A is ##(V_B-V_A) \equiv V_{BA}=E_1-E_2-2IR=0## The current arrow drawn is an arbitrary polarity definition, so...

google, dude. It works great... https://staleyelectric.com/understanding-electrical-grounding-and-how-it-works/...

It comes down to the two different meanings of the term "vector", which in computing, can refer to both a 1D array of many elements, or...

I'm no expert, but it's basically vector/matrix operations. MAC (multiply-accumulate) and inversion operations are the common...

Thank you very much for the suggestion. I will go through these. It's been very touching seeing the effect he had on this community by...

OK, really, I'm not trolling. I'm actually curious and a bit confused about the level of interest. What's the point? Why do we need to...

This is basically what you're asking: https://arxiv.org/pdf/cond-mat/0101157 A global momentum measurement of the screen only yields...

Which doesn't change my statement that metal water pipes must be grounded, accessible or not. Although nonexistence is a valid...

Welcome to PF, @Mickey 6 -- You should have a look at this PF Insights article that applies to your situation...

First, if you post your personal theory, then the thread will be deleted, as per the forum rules. Second, we get several people like...

Because you are probably standing on the ground when you touch things.