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Space and fields
Electric & Magnetic Fields Lab
A classroom-grade field simulator for AQA GCSE and A-level Physics. Build field patterns, measure forces and extend into charged-particle motion and crossed-field reasoning.
Interactive physics lab
Electric & Magnetic Fields Lab
Move from GCSE field-line patterns to A-level quantitative fields, motor effect, charged-particle motion and crossed-field balance.
Controls
Live analysis
- Electric field
- 5.83e+5 N C⁻¹
- Uniform plate field
- 2.00e+4 V m⁻¹
- Motor force
- 1.20e-1 N
- Solenoid field model
- 1.68e+0 mT
- Magnetic radius
- 1.71e-4 m
- Crossed-field speed
- 2.50e+5 m s⁻¹
GCSE focus: field lines show the direction of force on a positive test charge, and closer lines mean a stronger field.
GCSE: move the probe and describe the direction of force on a positive test charge.
A-level: double the distance from a point charge and show that field strength falls to about a quarter.
A-level: use E = V/d for the parallel plates and explain why decreasing separation strengthens the field.