All Questions
91
questions
-3
votes
1
answer
362
views
How electricity works acutally?
I've been told that electricity is due to flow of charges(-ve charge=electron) that are provided by the battery. And no. of charges that leave battery at one end are equal to no. of charges that re-...
6
votes
2
answers
2k
views
Earthing, neutral and Earth's conductivity
Ok so this is gonna be a lot of mini-questions.
What exactly is the neutral wire?
How does earth conduct electricity for a live AC mains even though its just dirt and stones (it should be an ...
- 838
0
votes
4
answers
1k
views
Difference in directions of charge and current.?
I just dont understand that why does charge flow in a different direction as that if current when current is the rate of flow of charge.
user116688
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
4
answers
10k
views
Electrons moving in a simple circuit with a battery and a light bulb
I believe my understanding of electric currents is flawed and want some help to clear up a few things. I'm not looking for a precise scientific understanding, but to understand the basics. I'll try to ...
- 319
1
vote
1
answer
53
views
Does electron drift model apply to current in liquids
The electrons in a metallic conductor, tend to drift at abysmally slow speeds, but still a current is able to flow through it, because the net movement is in the direction of the applied emf.
How is ...
- 1,630
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
3
votes
1
answer
722
views
Why is lightning going from the Earth to the clouds while the electrons are going from the clouds to the Earth?
The lightning is often a discharge in advance. The (negative) charge slide occasionally a little further on in the conductive channel, wherein said channel is highlighted each time something. The ...
- 3,348
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
1k
views
Some questions related to circuits and flow of electrons
I have some doubts related to electric fields and flow of current. So, let us assume an electric circuit, which contains a battery and a wire connecting positive and negative terminal of the battery. ...
- 972
0
votes
2
answers
1k
views
Is the electric field in the wires of the parallel circuit always the same and how that affects current?
When we connect two resistors connected in parallel with a battery, it creates an electric field through this wire.
well, my question here:
Is the electric field in the main wire is the same as the ...
- 736
0
votes
1
answer
155
views
Voltage and Current
I know that as voltage increases, current increases by $V=IR$, but I really find some difficulty in understanding this at the atomic level (what happens with the electrons inside that wire). I ...
- 736
1
vote
1
answer
984
views
Electrons and ionization in an electric current [closed]
Conductors have free electrons to roam, but is that equivalent to continuous ionization of atoms in a conductor, say when an electric current is running through?
- 13
0
votes
1
answer
537
views
Does the current in a resistor depend on the speed of electrons?
If the speed of electrons in resistor is slow, then will the current be slow and if the speed of electrons is fast, then will the current be fast? Does the current in a resistor depend on the speed of ...
- 1
1
vote
0
answers
573
views
Is this the reason why a circuit with no components (except wire) would discharge the battery faster?
I read that if I simply connect two ends of a battery it would discharge really quick and it would last longer if the circuit contained e.g. a light bulb.
I wondered why is this happening and my ...
- 373