Electricity
Charge, current, voltage and the physics behind how electricity works
In the beginning...
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Lessons
Electric charge
Static electricity
Electric fields
Practice: Charges and fields
Conductors and insulators
Practice: Conductor or insulator
Electric current
Potential difference
Practice: Charge, current and energy
Measuring current and voltage
Resistance
Ohm's law
Practice: Resistance from a graph
Electrical power
Paying for electricity
Practice: Power and cost
AC and DC
Practice: AC or DC
Mains plugs
Practice: Wire a plug
Fuses and earthing
Practice: Pick the fuse
Where next
Course Complete
Up nextRecommended first Launch Lesson
What is electricity?
Start from electric charge and build up to Ohm's law, circuits, power, and the difference between AC and DC. Interactive simulations bring each concept to life.
