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This compact, low-voltage model has interchangeable permanent magnets and wire coils. Set up DC motors (permanent magnet, series-wound, or shunt-wound) and generators (AC or DC). Easily find the commutator (DC) and the slip rings (AC) on this working model. Plot voltage signals with probeware then ask students to explain why 1 signal is constant and the other is sinusoidal. Includes detailed instructions.
Set up DC motors (permanent magnet, series-wound, or shunt-wound) and generators (AC or DC) to teach current, Faraday’s law, Lenz’s law, motors, or generators. Both the magnets and coil mounts slide in and out of slots on the base. The distance between the magnet and the rotor armature can be adjusted by rotating the magnet. Depending on the configuration with or without the meters, 2–8 connecting cables may be needed. The rotor axle is mounted on factory-adjusted cone bearings that should not need further attention. Note: It is normal to see sparking at the commutator when the motor is running. Accumulating black deposits may be carefully removed with fine emery paper.
Power source (6- to 12-V DC; 2 to 5 A), connecting cables, and meters are needed but not supplied. Includes detailed instructions. An adjustable power source (AC/DC Power Supply, item #757213) is also recommended.
Helps you teach the following Next Generation Science Standards Student Performance Expectations:
|Motor Generator Base||1||Included|
|Permanent Magnets on Supports||2||Included|
|Wire Coils on Supports||2||Included|
|Adjustable Power Source (6- to 12-V DC; 2-5 A)||1||Needed, Not Included|
|Voltmeter (6-12 V; 2 A)||1||Needed, Not Included|
|Ammeter (2-5 A)||1||Needed, Not Included|
|Connecting Cables||8||Needed, Not Included|