All Questions
Tagged with conductors electricity
160
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How does 'conservation of law of energy' work in an open circuit connected to a hydroelectric generator?
I am trying to relearn high school physics and having trouble visualizing electricity in an 'open' circuit.
I am going to use layman terms so i don't confuse myself! Apologies in advance if i am ...
3
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Why is the electron mobility 'irrelevant' in metallic conductors?
This Wikipedia article states in the introduction
Conductivity is proportional to the product of mobility and carrier concentration. For example, the same conductivity could come from a small ...
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What makes electrons 'more free or less free' to move around?
I understand that conductors allow electron flow because their valence electrons are 'free' to move around.. But what exactly determines this 'freeness' and the lack thereof that separates conductors ...
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What is the exact mechanism of flow of electricity? [duplicate]
When a steady current
flows through a conductor, the electrons in it move with a certain average ‘drift speed’.
One can calculate this drift speed of electrons for a typical copper wire carrying a
...
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Skin Effect Explanation
I do not understand some things about the Skin Effect.
Its Wikipedia definition is:
Skin effect is the tendency of an alternating electric current (AC) to become distributed within a conductor ...
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Why can't free electron flow in water to conduct electricity?
This question is related to how batteries work. In a battery, the electrons can only flow in conductors, because they can't flow in the solution.
my own thoughts on the matter:
I believe it is ...
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How electric current is defined in a metal wire?
How current is defined if in a metal wire both positive and negative charge exist? Isn't the total charge/time 0?
2
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2
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Is it possible to become electrocuted even if using a Faraday suit on a high-voltage line?
I am a writer. I'm working on a novel (yes, fiction) but want to do my best to present a passage as accurately as possible.
The crux of the question is whether or not someone using a Faraday suit ...
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2
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Effect of electroplating on resistance
How will resistance of a wire be affected if I electroplate it with copper will it decrease ? And if yes then will the decrease be significant?
I need to find a topic for my project I thought it might ...
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Charge accumulation in wire
I came across a question about charge accumulation. It states that if a steady current flows in a wire composed of a copper and iron wire of same area (see fig), will the charge accumulate on the ...
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2
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465
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How does the current become homogeneous within a circuit?
I have two questions:
In a given circuit with resistances of different values connected in parallel, there is a different build up of electrons when the power source is turned on. Then, how is the ...
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153
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Creation of electric field inside a conductor
My book says that as soon as the two ends of a conducting wire touches the two terminals of a battery, it generates an electric field inside the conductor. Why?
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derivative of the electric field along the normal to the surface near the conductor
how to derive the formula approves the derivative of the electric field along the normal to the surface near the conductor is inversely proportional to the principal radii of curvature?
$\frac{\...
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2
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Does electric current create positive ions while flowing through a conductor?
As the conduction electrons are free to move randomly, i.e they are not restricted to a particular atom, then why don't these atoms get positive charge due to loss of these conduction electrons?
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3
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Electric shielding skin depth
I read that lower the frequency,the deeper is the skin depth in conductor.If we are using piece of thin conductor,like aluminum foil for example to shield something from electric fields,it would ...