What makes electricity want to move? And when it does, is it the same electrons along the way? Or is it pushing electrons out of atoms in like a domino effect?
In: Physics
Electricity which is flow of electrons simply moves by potential difference between two points. Difference of potential between two points causes it to move.
For instance, Suppose there are two wires, one side of each wire is connected to battery. And other sides wires are connected to a bulb. Black wire is connected to negative terminal of battery and red wire is connected to positive terminal of battery. There will set up potential difference between both terminals of battery. If the positive terminal has higher potential and negative terminal has lower potential then electric current through battery moves from positive terminal (higher potential) to negative terminal(lower potential) passing through wire to the bulb.
And the reason behind potential difference is that when a **voltage** is connected across a wire, an electric field is **produced** in the wire. Metal wire is a conductor . Some electrons around the metal atoms are free to move from atom to atom. … This causes a **difference** in energy across the component, which is electrical **potential difference** .
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