Quick Answer: The Electric Motor Model is an open-frame d.c. commutator motor with a permanent magnet stator, used to demonstrate the motor principle. It drives a Newton’s colour disc with a seven-segment spectrum, so the same model also shows persistence of vision at different speeds.
Last updated: October 2026
Key Features
Open-frame d.c. commutator motor with a permanent magnet stator
Copper windings; impact-resistant polymer parts
4 mm safety sockets for a d.c. power supply
Newton’s colour disc with a balanced seven-segment spectrum
Demonstrates the motor principle and persistence of vision at varying speed
Students see electrical energy turned into rotation in an open motor with its parts on view, then watch the spinning disc blend its seven colours as the speed rises. It links electromagnetism and light in one demonstration. Schools, colleges and institutes in Bolivia, Moldova, Saint Lucia, United Arab Emirates, Benin and Cabo Verde can order the Electric Motor Model from Educational Instrument.
Frequently Asked Questions
What power supply does the Electric Motor Model need?
A d.c. power supply, connected through the 4 mm safety sockets.
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