How did J.J. Thompson decide that the electron was negative charge?
2589
Why is the charge naming convention wrong?
131358
Charge inside a sphere
94031
Triode - how come grid is "more negative" than cathode?
58219
The effect of gravitational & Coulomb forces on free electrons in a conductor
68425
Electric charge neutrality of the Universe: evidences and theories
127450
How can the electric potential be zero at a point where the electric field isn't, if that field can give a test charge kinetic energy?
155552
Is it possible for a system to have negative potential energy?
14810
Creation of entangled electrons
95550
Only one electron?
64935
Using photons to explain electrostatic force
140176
What keeps electrons on a negatively-charged conductor from leaving?
150217
Why can charges outside be ignored in Gauss's Law?
78151
How did Rutherford conclude that most of the mass (as well as the positive charge) was concentrated in the nucleus?
14373
In physics sometimes we find energy that is negative. What does the negative sign indicate?
114003
Why is the work done on a charge calculated from infinity?
126539
What is the range of the validity of Coulomb's law?
6709
Origin of electric charge