Courses
Log inSign up

Circuits

Explore the physics behind electricity.

31 Lessons334 Exercises

Current Loops

Short Circuits

Choosing Bulbs

Splitting Current

The Path of Least Resistance

Bulb Brightness

Changing Current

Different Bulbs

Conserving Current

Voltage

Measuring Voltage

Voltage Around Paths

Branched Voltage

Power and Brightness

Deducing Power

Resistance

Solving for Resistance

Predicting Current

Controlling Current

Combining Resistance

Dividing Resistance

Total Resistance

Voltage and Resistance

Resistance and Brightness

Relative Resistance

Sharing Amps and Volts

Parallel Volt Shares

Power and Bulb Pairs

Subtracting Volts

Comparing Points

Bulbs with Voltage

Up next

Digital Circuits

Build simple computers out of logic gates.

Jump ahead

Course description

Build an intuitive understanding of how electric circuits work, and the underlying concepts of current, voltage, resistance and power.


Topics covered

  • Current
  • Voltage
  • Resistance
  • Power
  • Series and Parallel Circuits

Prerequisites and next steps

This course assumes no prior knowledge and teaches the key ideas needed to understand electricity and electric circuits, with some fun puzzles to solve along the way.