Q1) Do electrons go first and only after they reached the other side the current appears? Or does the current appear first and it is the reason electrons start to move in the first place?
Q2) Is this the case for lightning too? If so, does it mean there is the current that goes from Earth to thunderclouds?
In: Physics
Scientists originally made the mistake of believing by in current was caused by positive charges moving. This was a mistake, negative charges are the ones.
So positive current really means electrons flow the other way.
Current is defined as negative electron flow. There is no first, current flows or doesn’t.
This all works similarly with lightning, though I believe the clouds can become either positively or negatively charged, so current flow can happen in either direction.
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