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0 votes
1 answer
455 views

Why is this incandescent light bulb working under water?

The bulb is directly connected to 220V supply and is put into this glass container containing normal tap water. Why is this bulb working under the water? What about the ionisation of water molecules ...
Curious's user avatar
  • 11
1 vote
0 answers
23 views

In AC, do Electrons move in perfect Sync with Generator Rotation across the whole distance?

While i'm self studying electricity, one interesting topic seemed counterintuitive to me, which is: When an AC generator connects to a long XX KM length cables; each cycle, the electrons in the cables ...
Jay's user avatar
  • 11
2 votes
1 answer
270 views

Is the electron flow restricted by filament of a bulb?

Suppose that the electrons move with a speed of 0.0005 mm/sec in the copper wires. Do the electrons move with the same speed in the tungsten filament as well? This has to be true if current is same in ...
Vasvi Sood's user avatar
3 votes
3 answers
2k views

Why is flow of current considered opposite to flow of electrons even by "convention" [duplicate]

This question is a very basic one, We are told that that current is produced because of flow of electrons but it is stated that the flow of current is opposite to the direction of the flow of ...
Sourav Singh's user avatar
0 votes
3 answers
345 views

Safety devices like fuses should be connected with the live wire rather than the neutral wire?

So, I was told in my class that Safety devices like fuses should be connected on the live wire. But isn't the conventional current opposite to the direction of the flow of electrons? And what actually ...
Doodoo28's user avatar
38 votes
8 answers
20k views

Is electricity really the flow of electrons or is it more involved?

I am new to the physics category of the Stack Exchange site. I apologize if my question is wrong, too broad, simple, or worded incorrectly. I am just trying to figure out what is true and false when ...
spiderman0297's user avatar
0 votes
1 answer
1k views

Is the path of an electron between successive collisions (with positive ions of the metal)a straight line in the presence of electric field?

I feel that the answer should be yes. While the entire journey isn't straight, the journey between successive collisions is straight. But the internet and my book says the opposite (the path is curved)...
ljm's user avatar
  • 7
0 votes
1 answer
307 views

Free electrons in materials with high resisitivity

I want to understand why exactly resistors or materials with high resistivity difficult the flow of current. If I'm not mistaken, there are not many free electrons in this materials to move and ...
fraghotmailcom's user avatar
2 votes
1 answer
446 views

How does electric field propogate in a wire? [duplicate]

When I say electric field, I'm referring to the electric field that causes the movement of charge in the wire. I have learnt about currents and resistances, but I have never really had an ...
Michael Faraday's user avatar
0 votes
1 answer
55 views

What is the actual physical movement of the electron from the copper atom that produces electric current?

What is the actual physical movement of the electron from the copper atom that produces electric current? Is the electron given a higher energy level and this releases the electron from the copper ...
Curtis W. 's user avatar
0 votes
1 answer
121 views

When AC electricity is generated, how does the current flow? [duplicate]

I have read multiple different versions of how AC current flows in our power lines. How does the current flow? Is the energy just photonics waves passing through electrons that vibrate or are ...
JoshuaR's user avatar
0 votes
4 answers
196 views

Electrons in an electric circuit , its movement and power delivered

Does an electrical appliance convert electrons into its respective work , I mean is electron being consumed by appliance (say bulb ) and then this mass gives us energy. or the same number of electron ...
crabNebula's user avatar
0 votes
1 answer
767 views

How do electrons actually move in an alternating current?

Here's what I think the motion of electrons would be like. Let's say the electrons were initially at rest. Now, when the voltage starts increasing, the electrons start accelerating faster till the ...
Pratham Hullamballi's user avatar
0 votes
1 answer
566 views

Would a flow of current (of positrons) zap us?

I have read this question: Will Positron Cause flow of electricity? To your question, yes, positrons are just as good as electrons for carrying a charge. There is no difference between "...
Árpád Szendrei's user avatar
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 ...
fyiitsme's user avatar

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