Ever wondered why electricity feels like magic flowing through our homes? ⚡ Just like water needs pressure to flow through pipes, electrons need voltage to move through circuits. They bump into each other, transferring energy along the way - and that's how your devices come alive! 💫 What's the most fascinating thing you've learned about electricity that changed your perspective? Follow @Science for more explanations of everyday physics! #science #electricity #physics
Nice for elementary level but somehow misleading for others. Besides, this is a very common wrong belief. It’s the electromagnetic energy propagation materialized by Umov-Poynting vector (E outer product B) which carries the energy, not electrons kinetic energy which causes the drift. Moreover inside the metal the charge density and electric field are null, all happens on and outside the surface of the wires.
Just that this is not true! Electrons hardly move and energy is transferred by the electromagnetic field outside the cable.
The animation is good but has room for improvement. It would be more effective if it illustrated the random movement of electrons initially and then showed how, upon applying voltage, they begin to move in a specific direction opposite to the electric field.
I believe that this video would be easier to understand if the people were backed up a little because one man was restricted from going through easily. Example: No resistance - all of the people go through easily standing up. Some resistance - the people can still make it through, but they have to get on their knees/slide and the people behind start getting closer to each other. Much Resistance - one person is trying to squeeze through and the others are having to wait in line for that person to go through before the next one can.
There is a misunderstanding in the animation! It says that the resistance reduces as voltage increases! It obviously contradicts the fact that resistance doesn’t depend on voltage (ideally). Suggestion: instead of changing the diameter, change the number of electrons to show the current variation.
this is a model for the relationship between voltage, current, and resistance. it is NOT at all representative of "how current actually flows in wires" or even an analogy for what physically happens. PLEASE stop spreading misinformation
It's fascinating to think about how something so invisible can have such a huge impact on our daily routines.
They should actually show the little men being excited on the left side, or fat, or carrying something of caloric (energy) value on the left, then being less excited on the right, or slim, or having less caloric value. Same number of moving men, but each carrying less energy based on the level of resistance.
Electricity truly is fascinating—it powers our world yet remains invisible to the naked eye. One thing that changed my perspective was learning about how alternating current (AC) travels long distances with minimal energy loss, making our modern grid possible. It’s amazing how science transforms the abstract into the everyday! What a great post to spark curiosity!
Director of DMPK Solutions Ltd
4dIt’s the electric field propagation that is critical not electron drift which is actually very slow