Eli5: how does electricity move? And, if electricity is electrons, does that mean that electricity has mass?

Question

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

Answer 1

I always think of electrical power like hydraulics. Voltage is pressure and current is, well, current. The pressure travels a lot faster than the actual water.