How does n95 mask differ from other masks ?

We've worn masks for about two years now. The last two years have taught you a lot about masks, even if you're not a doctor or a construction worker. Which ones you like, where to find them, and if extras are kept in your jacket pocket or car are all part of this list.

What makes the N95 mask so unique?

Let's check it out.

Fibres in paper or cloth masks stop particles from getting inside by blocking them. But the N95 mask does a very clever thing with physics. These fibres are charged with electricity. Electric charge is one of the most important things that all particles have. All the things you see are made up of three things: the proton, electron, and neutron.

For the time being, we won't talk about muons and neutrinos, which are both fundamental particles that actually exist, because they are only possible in theory. There is a weight for each particle, just like there is a weight for every other particle.

The proton has a positive electric charge that has a value of 1.6x10-19 Coulombs. This device is used to measure the amount of electricity in the air. In the same way, the electron has the same charge as the atom. The neutron doesn't have any charge. This is why "neut" was made.

Electric charges and their electric charges are in a force called electrostatic interaction. The electricity charge is very important to this. This force is based on the size and distance of the two charges. Coulomb's Law can be used to make this calculation, and it can be used for this.

• This is how it looks.
• F equals k times q one times q two over r squared.
• An important number called k is worth 9x109 Nxm2/C2.
• q1 or q2 are the charges, and the distance is r.
• This gives a lot of power in newtons.

If both charges have the same sign, the force will push them away (either one or both). In this case, the force is attractive if there are two different types of charges.

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In order for electrons to have electric forces, they must be made up of protons and electrons.

You could say that. A lot of protons and electrons are very small. Even a very small droplet of water could have as many as 1022 protons inside of it. The same number of electrons will be in that drop of water as in the other one. The neutrons aren't very important right now, at least not yet.

"Zero coulombs" is how many coulombs the drop of water is charged with.

It doesn't matter how many electrons your water has. Even if it has more electrons, it will still have a very small total charge. There aren't any electric forces in most of the things you can see.

How do you charge for something?

Did you ever take a sock out of the dryer and find that it was stuck to your shirt? There must be a reason why there is so much static electricity. You can make a sock negatively charged by making sure that it has more electrons and protons in it than other socks.

When you want to make the sock negatively charged, you will need a lot of electrons to do it. This number would show how many bills would be needed to give each person on Earth $1,000 in singles or $1,000 in cash.

When all the negative charges are added up, the sock would have about 1 micro coulomb of negative charge (1 x 10-6 C). Then, instead of adding electrons, you would take them away. In order for the sock to have a positive charge, more protons and electrons would be left behind in the sock.

You can't just take protons out of any object. It could be very dangerous. You can think back to the periodic table of elements to help you remember what each one is. It might be made of carbon and have six protons inside its nucleus. It would no longer be carbon if you took one of these protons away, so you could. Boron, which has five protons, would be the best choice for this. Then you would have made a nuclear reactor, too.

On the other hand, taking an electron out of carbon leaves you with just one carbon ion. This is true even if you add an electron back in. It doesn't change into anything else. You can add and remove electrons, but how do you do that?

There are two ways to go

The best way to move electrons is to rub them together. Even though it may seem like a crazy idea, it's actually true. If you take a pen and rub it on a wool sweater, both the sweater and the pen will be charged. This is how it works:

What about the electrons? Which one will get them first, then?

The answer will depend on the materials. You can use a device called the triboelectric sequence to figure it out. That would show that the wool is positively charged and the pen is negatively charged, so that would show that.

One more example of what happens when cotton clothes get dirty when they get wet from the rain. In this case, the child walked down the slide with his shirt pressed against the slide. These extra electrons spread across his body and into his hair. Because all of the hair was negatively charged, each strand of hair attracted the other strands. As a way to get the most space from each other, they had to stand up.

I like this picture.

However, it does need two things. First, you'll need hair that is very thin. This is how you start.

Curly hair will not stand straight up. Dry your hair, then. It turns out that kids with an electric charge will draw water. Then, the water will remove the charge.

You can also shoot extra electrons at something to get them on it. There are "electronic guns," and they can be used to shoot. You might have seen something like this before, though. Old-style cathode-ray TVs used electrons to make beautiful images on the screen. You can charge anything without having to touch it.

If you don't wear an N95 mask, your mask won't be able to stop small particles or viruses from getting into your body. Wet blobs coming from the nose and mouth are what you need to stop. They might have a virus. These usually aren't charged, but in this case, N95 or KN95 masks do a lot of good.

The idea that an N95 mask that is charged with electricity would be useful for stopping charged objects isn't true. It's possible to have interaction between charged and uncharged objects.