Quick Answer: The Demonstration Electric Motor is an open-construction model of the simplest form of d.c. motor, with a 2-pole armature, a disc-type commutator and a removable magnet, running on 3 to 6 V d.c.
Last updated: October 2026
Key Features
Open construction, so all components are readily observable
2-pole armature wound with enamelled copper wire
Disc-type commutator
Permanent magnetic field from a removable magnet
External connection by a pair of 4 mm sockets
Operates on 3 to 6 V d.c.; height 125 mm
Technical Specifications
Specification
Value
Armature
2-pole, wound with enamelled copper wire
Commutator
Disc-type
Magnetic field
Removable permanent magnet
Supply
3 to 6 V d.c.
Connections
Pair of 4 mm sockets
Height
125 mm
About This Product
This model shows the simplest form of d.c. electric motor, and its open construction keeps every component in view. Power is connected through the pair of 4 mm sockets, and the motor runs on 3 to 6 V d.c. The field magnet can be removed.
Frequently Asked Questions
Q1. What supply does the motor need? It operates on 3 to 6 V d.c., connected through the pair of 4 mm sockets.
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