electrons actually loop around in a closed DC circuit in the speed of light
On average, electrons "move forward" much much slower than that:
https://en.wikipedia.org/wiki/Drift_velocity
But even the whole "electrical signal" is slower than the speed of light:
https://en.wikipedia.org/wiki/Velocity_factor#Typical_velocity_factors
On average, electrons "move forward" much much slower than that:
https://en.wikipedia.org/wiki/Drift_velocity
But even the whole "electrical signal" is slower than the speed of light:
https://en.wikipedia.org/wiki/Velocity_factor#Typical_velocity_factors