Linked Questions

17
votes
3answers
5k views

If electrons were positive and protons were negative, would life be different? [duplicate]

This was a question on a worksheet during my first week in a class on Electromagnetism. The answer is essentially: No. Life would be no different if electrons were positively charged and protons ...
11
votes
1answer
14k views

Who (and Why) started the “electrons are negative, protons are positive” convention? [duplicate]

For some reason everyone labels electrons using a minus sign and protons using a positive sign, even though the opposite seems more intuitive: Who started the convention that electrons should be "...
3
votes
2answers
9k views

Why are electrons defined to have negative charge? [duplicate]

We normally think of the "default" or "root" state of things as being on the positive side of the spectrum. For example, we don't normally use a + symbol to ...
0
votes
0answers
11k views

Why do current and electrons flow in opposite directions? [duplicate]

In representing an electric circuit, we would draw the sense of the current from the positive to the negative pole and the electrons from the negative to the positive . But as I know electrons' motion ...
0
votes
2answers
933 views

Why is the charge of a proton positive? [duplicate]

Is there a reason that a proton has a positive charge while an electron has a negative charge? Are these just names that were given to the charges or was there a reason for making a proton have a ...
0
votes
1answer
1k views

positive charge , current and electron flow in a simple circuit …confusion [duplicate]

my question is that in a simple circuit one wire attached with battery cell ,and then electrons start flowing from lower potential to higher and as we know in metal wire only electron is the thing ...
1
vote
2answers
429 views

What is the difference between poisitive and negative charge? [duplicate]

I would like to know what charge actually IS. Not the 'flow of electrons' charge but the charge because of which protons and electrons attract. I want to know why these attract and what the difference ...
0
votes
1answer
533 views

Why are electrons negative? [duplicate]

By my understanding their charge could have been called positive, and the charge of the proton and positron called negative. What are the historical reasons for this?
1
vote
0answers
193 views

Why aren't electrons positively charged? [duplicate]

For the study of electric circuits, it seems like it would have made more sense to establish that electrons carry a positive charge, and protons a negative one. That way, arrows representing current ...
0
votes
1answer
107 views

Why are electrons negetively charged? [duplicate]

Why have we assigned a negative charge to electrons (and positive for protons)? I feel it would be easier if electrons were positive (thereby, protons negative)- electrons would flow in the direction ...
1
vote
1answer
78 views

Please tell me that why aren't we discarding the conventional flow of current despite not being in sync with principle of potential difference [duplicate]

electric current flows from higher potential area (negative terminal) to lower potential area (positive terminal).this clearly indicates that electric flow (flow of electrons) takes place from ...
0
votes
0answers
8 views

Direction of the current and the electrons [duplicate]

If the electric current is defined as Coulomb/second, why is the direction of the current is just the opposite of the direction of the flow of electrons?
38
votes
5answers
23k views

If the Earth is a good conductor of electricity, why don't people get electrocuted every time they touch the Earth?

Since the Earth is a good conductor of electricity, is it safe to assume that any charge that flows down to the Earth must be redistributed into the Earth in and along all directions? Does this also ...
22
votes
3answers
17k views

How can the Hall effect ever show positive charge carriers?

The Hall effect can be used to determine the sign of the charge carriers, as a positive particle drifting along the wire and a negative particle drifting the other direction get deflected the same (as ...
12
votes
6answers
10k views

What are “electron holes” in semiconductors?

I'm tutoring senior high school students. So far I've explained them the concepts of atomic structure (Bohr's model & Quantum mechanical model) very clearly. Now the next topic to be taught is ...

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