Electromagnetism lab – induction, transformer, generator
PhysicsElectric & Magnetic FieldsAges 17–18
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Sign in to playFive experiment screens on electromagnetic induction: a bar magnet with a compass and a field meter; moving a magnet through a pickup coil to light a bulb (with electrons visibly flowing in the circuit); an electromagnet whose poles switch with a DC or AC supply; a transformer showing that the voltage ratio equals the turns ratio when both coils sit tightly on the core; and a generator turned by flowing water. Adapted from the "Faraday's Electromagnetic Lab" and "Generator" simulations by PhET Interactive Simulations, University of Colorado Boulder (CC BY 4.0); rewritten.
Lesson: Electromagnetic induction
How to use
Parameters you can change
- Screen Bar magnet, Pickup coil, Electromagnet, Transformer, Generator
- Magnet strength (Bar magnet, Pickup coil) 0–100 %
- Show magnetic field vector grid
- Show compass (Bar magnet)
- Show field meter (Bar magnet)
- Magnetic field display units Gauss (G), Tesla (T)
- Pickup coil turns 1–8 turns
- Pickup coil radius 1.5–4 cm
- Magnet's left pole (Pickup coil) North (N) on the left, South (S) on the left
- Indicator (Pickup coil) Bulb, Voltmeter
- Electromagnet turns 1–8 turns
- Power supply type (Electromagnet) Direct current (DC), Alternating current (AC)
- DC supply voltage -6–6 V
- AC supply amplitude (Electromagnet) 0–6 V
- AC supply frequency (Electromagnet) 0.1–1 Hz
- Iron core (Electromagnet)
- Primary coil turns (Transformer) 2–10 turns
- Secondary coil turns (Transformer) 2–16 turns
- Primary voltage amplitude U1 (Transformer) 1–6 V
- AC supply frequency (Transformer) 0.1–1 Hz
- Secondary indicator (Transformer) Bulb, Voltmeter
- Water flow (Generator) 0–100 %
- Coil turns (Generator) 1–6 turns
- Magnet strength (Generator) 20–100 %
- Indicator (Generator) Bulb, Voltmeter
