It all starts with atoms... study atoms a bit first, study how the electrons fly around the nucleus
I worked with a scientist running an electron microscope a few years back... an atom of silicon looks like an egg a microscopic piece looks like eggs in a crate of eggs..... the electrons form a cloud... around each atom... thats what you are seeing with the electron microscope
Copper atoms for instance have a center. like the sun in our solar system... the sun is the center and the planets are the electrons in our solar system so to speak
the two electrons farthest away from the center, (called the nucleus) break away easily,,, and can move down a chain of copper atoms... the actual number of those electrons moved per second is called amperage (thats a few hundred thousand electrons per second)
the force which they are propelled is called the voltage
Voltage times amperage equals watts, thats the same as current
watts is a measurement of power
Like a river, the more water (amps), and faster it flows (because of voltage pressure) the stronger the current so we get V x A = watts.
this is over the head of many electricians but not over the head of EE's
If you get that firmly in mind ....after a few hours mulling it over, you will have the basic data necessary to work with electricity
Without that you will be lost... then study from there.
DC current is direct current... it goes from one pole of a battery to the other pole, it flows like a river in just one direction, thats just one example however
AC current flows back and forth, the same electrons are pushed back and forth in the wire. thats called alternating current... AC
Your house uses AC current,, it cycles back and forth 60 times a second,
for the rest of the story find a high school physics book that talks about electricity and you will learn the rest of the basics... the older the book the better, chemistry books talk about the electrons, and which atoms work best for conducting electricity. the metals mostly.
at the very very high end we have the complete mystery of what an electron actually is,... we have no clue, we only know how to use them to do some things.,.. we are like babies in our understanding. The huge hadron collider in Cern switzerland smashes attoms together in an effort to find what they are made of
So far we have a few dozen parts, called quarks, muons, and etc, we are like cave men in our understanding, so far we only know enough to blow ourselves up... and destroy all life on earth,
we are trying to get smarter.
a man named Nicolai Tesla was ahead of us by miles, he died many years ago. we are still attempting to understand what he did.
As man named Maxwell born in the 1800's wrote equations that we are still trying to fathom today... he was a very smart man.... we may be regressing.due to the NEA, its hard to say, NEA is the National Educational Association.
I sat across board room tables from many of the folks in the nuclear weapons business... thats where I learned that anything run by the goverment goes south,
I was asked to testify before congress a while back.. thats what I told them.. I said, if you keep screwing with us engineers, its going to end badly.
waste of breath
Good luck in your studies