Electric Current
Also known as: current, amperage, I
The rate of flow of electric charge through a conductor. Current is what does useful work in circuits — powering lights, motors, and electronics.
💡 Intuition
Current is like the flow rate of water in a pipe — how much charge passes a point each second.
Core Idea
Current measures how much charge moves past a point per second.
🔬 Example
🎯 Why It Matters
Current is what does useful work in circuits — powering lights, motors, and electronics.
⚠️ Common Confusion
Conventional current flows from positive to negative, but electrons actually move the other way.
Related Concepts
Prerequisites
Next Steps
How Electric Current Connects to Other Ideas
To understand electric current, you should first be comfortable with electric charge. Once you have a solid grasp of electric current, you can move on to voltage, resistance and ohms law.
Go Deeper
Frequently Asked Questions
What is Electric Current in Physics?
The rate of flow of electric charge through a conductor. Measured in amperes (A).
Why is Electric Current important?
Current is what does useful work in circuits — powering lights, motors, and electronics.
What do students usually get wrong about Electric Current?
Conventional current flows from positive to negative, but electrons actually move the other way.
What should I learn before Electric Current?
Before studying Electric Current, you should understand: electric charge.