Questions tagged [electron]
Anything related to the behavior and properties of electrons, i.e. the elementary subatomic particles accounting for electrical conduction in most solid materials, especially metals.
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Generation of electrostatic induction
I need to generate a 500 volt electrostatic charge.
How can I do this?
I don't have a Van de Graaff generator.
What are some practical suggestions?
Basically I want to do an experiment in which I need ...
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Repelling charges and current flow
The electrostatic force between two like charges is repelling. This concept is fairly clear to me with Coulomb's law and electric fields. So two electrons will repel each other. Given this statement, ...
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Why are low band gap semiconductors (like silicon) not ideal for most solar cells? Are their atoms ionized by higher-energy photons?
Most sources on the web say that 1.3 eV or 1.4 eV is 'ideal' for most solar cells...
What happens to lower-gap, gapless or overlap materials (conductors)? Are they ionized, rather than sending their ...
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Why is there EMF present when there is no current?
Current means the rate of flow of charge. Electrons are the ones that carry charge in current.
From the definition of EMF (electromotive force),
When no current is drawn from cell, the potential ...
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What does charge on an electron mean?
As I have read , charge is electrons , protons or neutrons.
Now , according to definition of current , current is the rate of flow of charge I.e flow of electrons. Then , I=Q/t . Unit of Q is coulomb &...
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Majority Charge carriers and electron holes
Suppose I have an extrinsic semiconductor made of silicon and doped with phosphorous. Now, phosphorous has one more electron than silicon. After replacing one silicon atom, and taking its place, the ...
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Shelly 1 Configuration
I am trying to implement the Shelly 1 switch for an electronic device I have. The electronic device has an open collector output channel (AUX1). It also has two output pins Z8 and C.
When Z8 and C are ...
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Can current flow from positive to positive in real life
How to implement a circuit diagram where there are 2 batteries and negative to negative have load and postive to positive have some load. How to implement, like build in real life this ...
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Is there a mnemonic to remember direction of current flow?
I have always stumbled when remembering which current flow notation to use. In my mind, it's by default conventional current flow.
But, I also have in mind electron flow notation.
Do you know of a ...
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How many newtons are there in one coulomb of charge?
Or, I should have said, how many newtons of force does one coulomb of charge exert? At a distance, presumably, of one meter? Since N/C is supposedly equivalent to V/m?
P.S. What are the values for a ...
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Removing collected charges in a IC CMOS circuit exposed under a 30keV electron beam source
I would like to know if there is any mechanism (for example UV light exposition) to remove charges collected in an IC CMOS circuit that was exposed under a 30keV electron beam source. Presumably, ...
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Can a floating capacitor terminal be used to collect electrons?
I want to collect charge from an electron beam source. For that, I'm proposing to put a floating capacitor with its bottom terminal floating and directly exposed to the electron beam gun. The top ...
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Why does current continue flowing in a circuit?
Sorry for the amateur question, but I'm having trouble understanding this phenomenon.
In a closed circuit, electron current flows from the negative terminal of a battery to the positive terminal.
But ...
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Signal interference in receiving antenna?
I’ve been scouring the interweebs for some insight into how electrical signals travel in a wire.
More specifically, I cannot wrap my head around how a receiving antenna works with hundreds if not ...
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In which direction do electric signals flow?
We know that electrons move from the negative to positive terminal, and that holes flow in the conventional direction of current - from the positive to negative terminal.
I've always assumed that this ...
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