Linked Questions

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1answer
317 views

IF electrons flow in opposite direction to the electric current then what constitutes the current?

If electrons flow to the opposite direction to the electric current and the protons do not move instead they create the current, then what actually flows in the electric current? Since current is flow ...
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2answers
239 views

What is the fundamental reason for noise?

I have read that noise is a result of there being "no such thing as a perfect one-way valve". That energy transfer is never perfectly one-way; there will always (at some level) a finite flow of energy ...
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4answers
774 views

Effect of a magnetic field on cathode rays in a cathode ray tube

My question is regarding the direction in which cathode rays bend in a magnetic field. My book states that : When only electric field is applied, the electrons deviate from their path and hit ...
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2answers
267 views

Can quarks have anti-colors? [closed]

What is the reason that the color properties we call red, green and blue have become tied to quarks, while what we call anti-red, anti-green and anti-blue has become tied to anti-quarks? Do note that ...
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3answers
229 views

How to find the current if both positive and negative charges are moving?

A gas is connected to a copper conductor. In the gas, +6C of charge move to the left every second, and -6C of charge move to the right every second. What is the current in the copper conductor, and ...
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3answers
197 views

Are electric sources and sinks symmetrical?

When discussing sources and sinks for the property of divergence of electric fields, why is the positive polarity uniquely selected as a source and the other a sink? Aren't they both sources and sinks ...
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2answers
179 views

How can Current be positive when electrons have a negative charge?

I am a little confused. I have been told that electrons carry a charge of $-1.6 \cdot 10^{-19}$ coulombs, and that 1 coulomb is $6.25 \cdot 10^{18}$ electrons, and $1 \,\mathrm{A}$ is the current from ...
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4answers
125 views

Confusion about electron flow and current

So, I learned in class that current is defined as positive charges moving from south to north. However, in all reality, the negative charges are moving, but the convention of positive to negative wors ...
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1answer
76 views

What would have happened if electron was considered positive?

We always keep on telling that current flows opposite to electron, since electron is negatively charged. And old people didn't knew, that it is electron which actually flows.. So, now if we correct ...
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0answers
138 views

Benefits of the sign convention for electrons?

Benjamin Franklin considered electrons to be positive, but J.J. Thompson considered them negative. We obviously went with J.J. Thompson's convention. Why? What were the benefits of moving to J.J. ...
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2answers
88 views

Electron flow: Are these two simulations contradicting each other?

These two videos explain how a diode works: https://www.youtube.com/watch?v=W6QUEq0nUH8#t=03m25s (3:25) https://www.youtube.com/watch?v=JBtEckh3L9Q#t=07m40s (7:40) In the second video, electrons ...
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2answers
82 views

Does the Conventional Current flow consist out of anything? (virtual photons)

I've red that virtual photons are a way of interpreting the electromagnetic force between charged particles. Is convention current a electromagnetic field or force? Or is it a movement of ...
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1answer
56 views

Negative ampere and graphical convention

Since only electron's flow in electricity and electrons have negative charge, then why we don't say —1amps (—1C/s)? Secondly, as conventional way we write down independent variable in $x$ axis and ...

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