Recent content by Jozef Trulik

It is true, because there is big potential difference between these two object, when your hand is charged. Thank you all very much, during this discussion I discover many new things which I did no know and also clarify some my statements. I want to have organised my knowledges better and...

You need to have some no needed electrons on your skin according to me, because binding between electrons and protons in your skin is strong. So your skin need to be charge negativelly, but atoms of metal have orbitals lower energy levels so this electrons on your skin skip to metal according to me.

Thnak you, I did not understand because I thought that my skin on hand is charged possitively, but when I am thinking about it now, it seems to be more probably that it is in reverse.

Is here someone who know the answer?

Thank you very much for reply, it is answering my question. I have just some arguments againts your arguments: Men skin according to triboelectric table is easier releasing electrons and rub is usually constist of some ryaon, which is attracting electrons in more times. So I think, that men...

Is this question write opaquely? Or is it so easy or hard, when nobody reply on it?

Dear all, I would like to ask you to explain me this question on physical (chemical) level. Question is: Why static electrical charge is moving when I press and move my hand on rug and then catch a piece of iron, which is not gorunded? According to my knowledge, iron atoms had not strong...

Dear DR.D, as you wrote: this system is "typically" grounded. But which return path is using when it is not grounded? Thank you

Dear all, please could you share with me your knowledge about three phases generator? I would like to know exactly how current flow back to generator. For example what is exact way of current from generator (1). What line is using as return path for it. And also do not know how it is possible...

Dear all, I think I found out the answer. We can imagine these two cases (10 Ohms resistor and 20 Ohms resistor) as two bottles (the same capacity) with different diameter of throat. So when we have smaller diameter of throat (20 Ohms) water will flow in smaller quantity as bottle with bigger...

Dear Drakkith, thank you for comprehensive answer. I tried to use the same way of thinking before, but I had one problem which I could not explain. When we have simple circuit with one resistor, which have 10 Ohms resitance and 10 volts voltage source, than the current flows throught circuit...

Thank you for replies. But I still do not understand how resistor influence current on physical base.

Dear all, I would like to ask you one basic thing. I know exactly how resitor works on electrical base. But I want to know if I know good how it works on physical base. This is my knowledge from primary school (for basic circuit). Input current and output current in circuit is still equal. This...