eli5 What’s the difference between AC and DC currents?

Question

eli5 What’s the difference between AC and DC currents?

In: Engineering

Answer 1

DC is pulling a rope tied to the bucket in the well. In order to get the bucket of water, you need to pull the entire length of rope.

AC is using a ratchet to pull the bucket. You move the rarchet back and forth to pull the bucket of water out of the well.