Recent content by webberfolds

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    There will be current when diode is reverse biased

    I didn't check before but it's from 2011 I think, I guess I should comment on new ones instead.
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    There will be current when diode is reverse biased

    First of all the information I give is based on what I read and if I'm wrong on anything please say. So the holes and electrons tend to stay in the semiconductor. In the first diagram the electrons would move counterclockwise and the electrons originally in the semiconductor would be repelled by...
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    How electricity moves through wires

    So the electric field causes a lot more current than the magnetic field in this picture? What if the electric and magnetic fields swapped places? So do the purple arrows represent the velocity of the current? V=d*E, V is the voltage between what points? "E" is the strength of the electric field...
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    Can irrational numbers exist on the numberline?

    Ya it doesn't matter what numeral system use. I wrote that because I didn't know at the time. I don't know if irrational numbers exist though but math can prove it does or doesn't.
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    Can irrational numbers exist on the numberline?

    I'm pretty sure I understand what mean and yes the concept that nothing can reach infinity is true. Now if irrational numbers exist is another question and that may depend on the numerical system.
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    What is the issue with an infinite universe on a N-sphere?

    Nothing can reach infinity even with an infinite amount of time. Infinity isn't a number.
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    How electricity moves through wires

    yes I know about that principal. Electrical current behaves like a fluid but it depends on what is meant by fluid, thanks. I wasn't comparing electrical current to race cars and if i said electrical current i meant the one that's almost the speed of light. What's a good word for it? I know now...
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    How electricity moves through wires

    I understood all of that, thanks as well. :)
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    How electricity moves through wires

    Thanks for explaining, I'll keep on finding out more about it until I understand it, but there was a lot of good info in that post, that diagram says a lot too, I can't find a better one on the web, thanks a lot :).
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    How electricity moves through wires

    Sorry! I made an error, when I wrote "electrical currents" I meant "electricity" or the one that's the fastest. Kirchhoff's laws seem important for what I'm trying to learn, thanks.
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    How electricity moves through wires

    I reply to Ratch: "Current travels at its drift velocity in a conductor", "Don't say "electricity". That is a generic term that means everything electrical, and says nothing about what specific thing you want to know about. You really mean current". I want a way of saying the one that's almost...
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    How capacitor blocks dc current?

    https://www.physicsforums.com/showthread.php?t=6065. Read the 5th post. I don't know why people say the current passes, it's weird!
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    How electricity moves through wires

    Actually never mind what I wrote there is wrong, So I'm trying to find out more about how it moves through wires. Say there's a wire that separates into 2 wires, how can I predict how much electricity goes either way? I bet there could be a lot of variables but I want an example or some way I...
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    Inductors: what do they do?

    I don't know much at all about it but I've learned some stuff recently that may already know and stuff but anyways. Correct me if I'm wrong on anything please so I can learn, I'm a beginner. What they do is they resist any change in the amount of current flowing through them by slowing down the...
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    How antennas receive AM radio signals

    Thanks, I think that might help me find what I'm looking for. I appreciate it. :)
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