Cold Think of basic physical constant. These are special values used in our models of the physical universe. They include things such as the speed of airy, gravitational and constant Plancka, and are “fundamental” in the sense that we cannot lead them theoretically, we can only measure them.
We employ them all the time in solving physics problems, so it’s straightforward to take them for granted. But why If There are such numbers in nature and why do they just have these specific values? Because listen, if they were only slightly different, the universe could be unable to support life. Did any cosmic Clockmaker set these parameters? Isaac Newton thought so.
One of the most basic of these numbers is electric constant, k. This is a value that allows us to calculate the forces between electric charges. This is a gigantic deal when you take into account that all the matter is made only of three things – electrons, neutrons and protons, two of which have an electric charge. The interaction between electrons creates particles to create you and everything around you. Otherwise it would be just a undifferentiated soup.
But how do we know the value of electric constant? What does this have to do with the basic indefinite? And as far as it is, whether it Really basic? Let’s examine.
Coulomb law and indefinite
When we say something has an electric charge, we mean another number of protons and electrons. If the clothes dryer removes electrons from the socks, they will be positively charged. If they get electrons, they will be impaired negatively. (Note: You can’t take protons because they are in the nucleus of the atom. It would include a nuclear reaction that nobody wants).
If you have two objects with opposite loads, they attract. If they have the same fee, they reply. Here is a demo that you can do: take a piece of lucid tape and place it on a polished table. Then put the second piece on it and connect them together. Now, if I separate them, one will be positive and one will be negative; Keep them nearby and they will bend towards each other.
If you repeat the process, you will have two positive and two negative tapes. Keep two with similar loads close together and you will see that they are pushing as in the photo below: