All Questions
19
questions
0
votes
2
answers
93
views
What is actually electric current? [closed]
Electric current is the rate of flow of charges (electrons) or the rate of flow of positive charge. Okay, I get it. But here's my question. The electron flows in the wire and then the current flows in ...
0
votes
1
answer
61
views
Why do we indicate current to be flowing against electrons in a electric circuit ? If it is a convention thenwhy do we draw it along studying it? [duplicate]
I believe that electric current is a kind of force (even when we consider it to be opposite to the flow of electrons). If it is so then what is the nature of this force ? And also tell me if there are ...
0
votes
1
answer
141
views
Why were electrons chosen to be negatively charged? [duplicate]
Wouldn't it make more sense to call electrons positively charged because when they move they make electricity?
- 1
0
votes
1
answer
199
views
Why the potential at positive terminal is considered to be high?
even though it's the electrons that move from negative terminal of the battery and gets move along the external circuit and finally enters the positive terminal of the battery and due to battery force ...
- 29
2
votes
1
answer
272
views
Confusion on negative charges, current, and direction
My text book seems to have two contradictory statements about the same subject. Under the electrical potential and capacitance chapter, it says that negative charges move from lower to higher ...
- 217
1
vote
4
answers
870
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 ...
- 11
0
votes
0
answers
10
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?
- 23
1
vote
1
answer
126
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 ...
- 109
2
votes
3
answers
36k
views
Direction of current and direction of flow of electrons
My textbook says that the flow of current is from the positive to negative and my notebook say that the flow of electrons is from negative to positive.
Why aren't they agreeing on one direction? Who ...
- 29
4
votes
7
answers
34k
views
What is the difference between conventional current and electronic current?
what is the difference between conventional current and electronic current?
How are they linked to one another?
0
votes
2
answers
618
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 ...
- 11
0
votes
1
answer
113
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 ...
- 109
0
votes
1
answer
78
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 ...
- 333
2
votes
2
answers
671
views
How can "...electrons flow in metals, but not in the ground..." explain grounding rods?
I really enjoyed Why is the charge naming convention wrong? But, in the comments at the very end, the statement that "...electrons flow in metals, but not in the ground..." left me uneasy.
I was ...
user106404
1
vote
2
answers
17k
views
What's the difference between a positive and a negative current?
Say I have a wire, and I connect a current source on its left end, and a ground to its right end. Then using my power supply I source a positive current, does this mean that electrons will move from ...
- 953
4
votes
1
answer
437
views
What proved Conventional sense wrong?
What fact proved for the first time that the conventional sense of current was wrong? And when it did happen?
As a corollary of this question, why do we say that electrons have negative charge? Is it ...
- 169
1
vote
2
answers
584
views
Direction of current in concentric cylinders
Example 7.2 in David Griffiths E & M book (3rd edition) has a side view of 2 concentric cylinders, with smaller radius $a$ and larger radius $b$. The region in between $a$ and $b$ has ...
- 593
5
votes
3
answers
1k
views
Charge signs in current
I've had recently an argument with my friend about different charge carriers in an electric current. Suppose that electrons and holes are moving in the same direction. It effectively means we have ...
- 283
78
votes
11
answers
56k
views
Why is the charge naming convention wrong?
I recently came to know about the Conventional Current vs. Electron Flow issue.
Doing some search I found that the reason for this is that Benjamin Franklin made a mistake when naming positive and ...
- 1,291