Quick Answer:The Demonstration Electric Motor is a simple DC motor with a 2-pole armature of enamelled copper wire, a removable bar magnet providing the field and a disc-type commutator, running on 6–8 V DC.
Last updated: 18 October 2026
Key Features
2-pole armature wound with enamelled copper wire.
Permanent field from a removable bar magnet.
Disc-type commutator with phosphor-bronze brushes.
External connection by a pair of 4 mm sockets.
Operates on 6–8 V DC.
Technical Specifications
Specification
Value
Type
DC motor
Armature
2-pole, enamelled copper wire
Field
Removable bar magnet
Commutator
Disc type
Brushes
Phosphor-bronze
Connections
Pair of 4 mm sockets
Supply
6–8 V DC
How It Is Used
Connected to a 6–8 V DC supply, the armature turns, and because the parts are open to view students can follow how the commutator reverses the current to keep the coil rotating.
Frequently Asked Questions
What supply does the Demonstration Electric Motor run on?
It operates on 6–8 V DC, connected through a pair of 4 mm sockets.
