2. Where Does Electricity Come From? ⚡

2. Where Does Electricity Come From? ⚡

Aug 24, 2026·
Xander Chu
Xander Chu
· 1 min read
psychology

Key Question

Where does electricity come from?

What You’ll Learn

  • What electrical charge is
  • Why positive and negative charges attract
  • Why like charges repel
  • How moving charge creates electrical effects
  • Why electricity matters for neurons

Key Takeaway

Electricity begins with charge.

Neurons use the movement and separation of charged particles to create electrical signals.

Next

Continue to What Makes an Atom Become an Ion?

Xander Chu
Authors
Xander Chu (they/them)
Founder, XC Psych
Psychology student at UNSW exploring psychology and neurobiology from first principles, with a background in data science, machine learning, software engineering, and tennis coaching.