Isn't the electron a particle with a negative charge?

Could you please clarify the following sentence?

"A charge is the build up of positively or negatively charged electrons."

Thanks,

Marco


randofo3 months ago

A charge can be comprised of positive protons or negative electrons. In electronics, we are dealing with the flow of electrons.

https://en.wikipedia.org/wiki/Electric_charge

mrbonine randofo2 months ago
Positive protons has nothing to do with electrical charge or electrical potential. Electrons are involved in electricity, and while protons are always present (not necessary I'm a vacuum, thought) for electricity just happen to be nearby, since the electricity is moved through, conducted by, and stored through elements copper that need protons to exist. Don't confuse electrical charge with atomic charge, they are different and may be somehow related, but a stream of protons can be created in a very powerful acceptor to shoot at targets to cause reactions, but have nothing to do with electricity. Electrical flow happens when a source has an electron hole (deficit) at one end of a conductor and an extra electron at the other end. The electron will be conducted from one end to the other, filling the hole with the extra electron. That's for DC. For AC the electrons along the conductor vibratee at some frequency, for example 60 Hertz or 60 cycles per second, but the either been transmit can move force to where it can be converted to work along a conductor. Forget about protons for the sake of this discussion.
UserInstru3 months ago

Yes it is. This is the root of the silly fact that make the difference between the "electric" current and the "electronic" current.. People usually thinks that the current flows from the positive pole to the negative pole. This can be considered right if we haven't to think to the electrons, that flows exactly in the opposite direction.

The Cathode of a Diode is the source of the electrons that will travel to the Anode, not the reverse.

Another point that move the thoughts in error i's the symbol of the Diodes that it's very similar to an arrow, and suggest us the wrong direction of the electronic current.

For all the multi-meter it's not a matter what the electrons are doing and what is they real direction, it' doesn't care.