Positive and Negative Charge

007 - Positive and Negative Charge

In this video Paul Andersen explains how all objects contain positive and negative charge. Neutral objects contain an equal amount of positive and negative charges. Charged objects have more positive or negative charges. Like charges repel and unlike charges attract. Neutral objects can be polarized and cause attraction.

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Music Attribution
Title: String Theory
Artist: Herman Jolly

All of the images are licensed under creative commons and public domain licensing:

[kelseyanderson]

Important to note here that there is no such thing as 'more positives' it is actually 'less negatives' that make something positively charged. Protons can't move from the nucleus of an atom!

[VijayRamanathanphotography]

finally I understood this concept after 17 years

[jikosauce]

I got so confused when I was learning circuit boards because I always thought the energy went in through the positive of a battery and out through the negative so this helped me finally understand they both output energy. Thanks for the great video. Can't believe it's 14 years old

[mahamshahid]

plz make as much videos on science subject as u can..because your videos r really helpful.i can only understand if someone explains patiently
.thankyou Mr.Andreson😊

[mirkaiglova]

These physics videos have quite clear graphics and they are fun too. They might be great for learning English as a foreign language especially for people who love science more than languages. Sth like extras for English teachers at schools abroad, ideally with some simple added revision questions both for physics and vocabulary.

[ragahavan]

really helpful in making the concepts more thanks alot!!

[chrisb]

How can you purposefully charge an object with a negative charge, and how would you store that negative charge?

[americanidle]

The Ford EDIS (Electronic Distributorless Ignition System) waste spark ignition system is an example of why I love Ford. Ford brought it to market in 1988 years before other companies like Toyota started using coils.

It works like this. For example, a 6 cylinder engine equiped with a computer controlled EDIS ignition only has 3 coils. Each coil fires one cylinder on the power stroke and the opposite cylinder on the exhaust stroke, ("wasting" the spark). The fact that instead of having 6 coils and only having 3 not only brings the cost of the part down by 50%, it also reduces the failure rate by 50% and it does decrease vehicle weight, not by a lot but in engineering terms anything counts. Now I know what you're thinking, if a coil fails then wouldn't you lose 2 cylinders? Yes you would, but, that's actually a good thing. Instead of having a slight misfire you would get a severe misfire and significant power loss, which would be impossible to ignore, so your car will spend less time running poorly and would be repaired immediately since something would be so obviously wrong, people would opt for repair sooner than later preventing damage to their engine. It's literally a 5 minute fix and it costs $20 to $50 for the OEM Ford Motorcraft part. A representative from the famous performance brand MDS ignitions even called Fords computer controlled EDIS ignition system "one of the finest systems running". The nice thing about EDIS is since it's computer controlled, by using a knock sensor or oxygen sensor you can electronically advance or retard timing on the fly maximizing power, efficiency and minimizing fuel predetonation and decreasing the likelihood of engine damage. That being said there are some drawbacks. Namely, since the system fires 2 cylinders at once your spark plugs are being fired twice as much as a normal system and do see more wear. Ford thought of this and made sure to use double platinum plugs (- + positive sides) that last 75, 000 to 100, 000 miles. The other downside is since there are two spark plugs hooked up to every coil, one spark plug will wear out the electrode and the opposite spark plug will wear out the anode. This is because when the coil fires it's pulling power from ground, through one spark plug and to the other spark plug back to the positive terminal of the battery. One spark plug is firing in reverse polarity always. It is a series connection.

This is the layout of the series electrical circuit

from - chassis ground to - of coil

from - of coil to + of coil

from + of coil to - of plug 1

from - of plug 1 to + of plug 1

from + of plug 1 to + of plug 2

from + of plug 2 to - of plug 2

from - of plug 2 to + of battery

(inside the battery in the positively charged electrolytic solution, electrical current flows from the + to - but outside of the battery using metal conductors which are always negatively charged and can only conduct negative current, electrical current flows from the - chassis toward the + battery terminal, notice this is exactly opposite as the inside of the battery and this is what allows for flow, opposites truly attract, to have a - flow outside of the battery a + flow inside must exist and vice versa. Think of the negative terminal of your battery as the pool of electricity, it defines the potential of energy, it can be tapped into anywhere on the body and will provide 100% of available power, and think of the positive wire as the choke, the wire size and load will only draw so much current from the negative ground, that's why when you hook speakers up to an amplifier, you can run both channels off one - ground but you need 2 separate + cables to get stereo because the + defines the load and potential, while the negative supplies the power that you are asking of it, you cannot run 2 channels on one + cable because you are only defining one circuit, all - connections are really one connection and the + connections are branches. The - is the reservoir of electricity and the positive is the pipe sucking a determined amount from it.
Now that you have that in your mind, the battery in reality doesn't provide the electricity, the chassis of your car and the wires have electricity stored in them all the time, the battery just creates an opposite field and causes the electricity that's already in the chassis and wires to circulate!)

from - of battery to - chassis and the chain repeats.

Relative polarity could be hooked up differently but it doesn't really matter much.

[kristinab.]

You helped a lot, thank you very much!

[mutasimahmed]

Thank you so much for this informative video

[daynight]

But what is positive and negative what does they mean, and why do opposite charges attract in the forst place.

[fedorsykora]

did anyone notice that there was a translator voice on 4:25 lel anyways Great vids :D

[mohammadhashemi]

hi hope all is well, can you please tell me if it is possible to permanently make a metal surface negatively charged?

[danreed]

Bozeman Science Thanks for the Great lesson on positive and negative charge! It was very informative, and very well explained, and demonstrated.

[shavezkhan]

Superb sir i hardly comments on a video but this time i could not stop my self. Thnk u so much keep making such kinds of

[Grogster]

Yes but what is the 'charge' What brought the charge into being???

[katesaychaleun]

I still have a slight doubt to as:
'if the negative charges are transferred from the sweater to the balloon - and in theory negative charges should repel - why was there a bunch of negative charges all clustered up together in the balloon?' Or does the principle not apply to the charges in the balloon?

Can someone help explain this to me please?
Thank you so much!

[Dan-gcke]

very confused on how charges move. For instance, on the simulator, why can't the balloon take electrons from the wall? Would that simulator only work with balloons or would any object be able to take electrons away by rubbing? For instance, could I have just rubbed my hand on a sweater or a box and obtain a negatively charged hand?

[almullaonline]

Thanks for your great explanation, it helps teach my kid :)

[mk-mzgu]

Amazing video, helped so much. Thanks a lot