Answer by Erol Can Akbaba for How did physicists know that only negative...
Initially, when first glass rods were systematically being rubbed, the "charging" phenomena was observed. The electric charges were hypothesized to be positive and negative, and the pioneer (Franklin?...
View ArticleClik here to view.
Answer by Jahan Claes for How did physicists know that only negative charges...
The Hall Effect shows that negative charge is moving.In the Hall effect, one passes a current through a wide strip of metal exposed to a perpendicular magnetic field. If positive charges moved, we'd...
View ArticleAnswer by dmckee --- ex-moderator kitten for How did physicists know that...
Physics's don't know that only negatively-charged particles move. We can create ion currents on demand in many environments. We do know that the current flowing in a metal wire is negatively charged...
View ArticleHow did physicists know that only negative charges move?
I have phrased similarly another question about how physicists knew that two charges exist, positive and negative. The purpose of the question is not necessarily to educate me historically. It's just...
View Article
