- #1
thender
- 39
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Hi, thanks for reading my questions.
I've been reading and reading and reading and reading and I'm trying to understand the difference between conductors, semiconductors, and insulators at an atomic level. When reading about electricity I often find that metals have a "sea" of "free" electrons that makes conducting currents possible. I also read about insulators and their ability to withstand high voltages before breaking down and becoming conductors (dielectric breakdown). And although I know very little about semiconductors they seem relevant here.
First question: why are some electrons more difficult to remove than others?
Second question: What does the energy level of an atom mean? does it have something to do with the orbital velocity of the electrons?
Third question: voltage is a force that acts on charged particles? does that mean that voltages are measures of electrical force?
Fourth question: how can an object have an excessively high voltage like 100,000 volts for example? Does that mean that the constituent atoms have a severe charge imbalance?
What I don't understand is what causes electrons to be ripped from their atoms and move forward in a chain reaction to create an electrical current, especially whether this is caused by repulsive forces between electrons (pushing) or by attractive forces from protons (pulling).
I apologize for asking a vague question but I can't put a finger on it.
Thanks for your help.
-Andrew
I've been reading and reading and reading and reading and I'm trying to understand the difference between conductors, semiconductors, and insulators at an atomic level. When reading about electricity I often find that metals have a "sea" of "free" electrons that makes conducting currents possible. I also read about insulators and their ability to withstand high voltages before breaking down and becoming conductors (dielectric breakdown). And although I know very little about semiconductors they seem relevant here.
First question: why are some electrons more difficult to remove than others?
Second question: What does the energy level of an atom mean? does it have something to do with the orbital velocity of the electrons?
Third question: voltage is a force that acts on charged particles? does that mean that voltages are measures of electrical force?
Fourth question: how can an object have an excessively high voltage like 100,000 volts for example? Does that mean that the constituent atoms have a severe charge imbalance?
What I don't understand is what causes electrons to be ripped from their atoms and move forward in a chain reaction to create an electrical current, especially whether this is caused by repulsive forces between electrons (pushing) or by attractive forces from protons (pulling).
I apologize for asking a vague question but I can't put a finger on it.
Thanks for your help.
-Andrew