Physics Review: E&M #1 What is a Charge?
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- Опубліковано 2 чер 2024
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We will learn that a charge is what constructs atoms and molecules and everything you see. There are 3 fundamental particles that make up almost all visible matter in the universe.
Next video in this series on UA-cam can be seen at: • Physics Review: E&M #2...
Title search on other platforms: Physics Review: Electricity and Magnetism #2 Atoms are Neutral
Thank you for your instruction, Professor.
You are welcome.
Neutron has partial negative charge ie - 2/3. How does it emit an electron in decay. Electron has 1 negative charge. Where does additional - 1/3 charge come from?
A neuton is made up from one up quark (+ 2/3 charge) and two down quarks (- 1/3 charge each). One of the down quarks becomes an up quark when a neutron changes into a proton by expelling a beta particle (essentially a negative electron). The theory states that a virtual boson is ejected through this process, which very quikly turns into an electron and an anti electon neutrino.
While net charge is conserved, additional + 2/3 charge is appears for up quark & - 2/3 charge for emitted electron. Can partial charge be created?
Electrons can only have a -1 charge.
@@MichelvanBiezenYes, but electron could get -1/3 charge from down quark which disappears, where does electron get remaining -2/3. Similarly where does +2/3 charge of newly created up quark come from. In a neutral atom when an electron leaves a positive charge appears due to one excess proton. Are quarks like atoms containing negative & positive particles?
Why we call Proton & Neutron fundamental particles when they exist as Proton & Neutron only due to Positron & Electron evidenced by Proton & Neutron decay. Should there not be only 2 fundamental particles i.e. Electron & Positron.
Mr. Professor when we have a charged molecule which is large (like polimer), what the net charge will be as a whole? (e.g. anion - removing proton)? Does charge of molecule disperse? (fraction of charge)
Every molecule, unless it is ionized, will be neutral.
@@MichelvanBiezen thank You.
I can’t help but believe that once we truly understand the innate nature charge physics will enter a new renaissance period of truth.
(“A deviation in the electron field “ is not an answer, that is just very bad philosophy, from very competent mathematicians.)
Science is about knowledge based on evidence and trying to "understand" what is happening. Physicists use mathematics as a tool to help with that understanding, but mathematicians do not produce the science.. Science is not founded on beliefs, nor believing, or truth vs lies, that is the realm of religion, where evidence is not considered to be relevant.
@@karhukivi you are regurgitating old talking points, the same points I was told and believed up to my thirties.
I started thinking and questioning for myself.
In reality everything you wrote is only slightly true, or was true “then” , not any more.
Only a complete fool would still “trust the science” instead of their own eyes and reason today.
But hey, each person progresses at their own pace.
@@4pharaoh Trust your eyes? You can't see a speeding bullet, a virus, radiowaves, electricity, gas, gamma radiation, or distant galaxies. Nobody is obliged to trust the science, but being objective and evidence-based, it is better than superstition and mythology.
Professor did you mean the constellations where aligned with the tropical year 2k years ago or that the pole star was Actually Polaris 2k years ago? Tropical year depends on the earths axis.
Professor is the sidereal year from Polaris to Polaris? So the pole star would never change if we followed a sidereal year?
So professor. Does the vernal equinox still have equal day and night after the effects of precession?