Principle
Students will construct various different motor designs using the motor model kit. Using a bar magnet on the model turns it into a DC motor with a direction of rotation dependent on the direction of the current. If an electromagnet is used for the stator field, as s ...
A motor that raises a load, i.e. converts electrical energy into mechanical energy, is a familiar everyday sight. The special feature of this set-up is that it can be used to generate electrical energy again directly from the descending weight. That electrical e ...
Electric motors for not too high power and simple dynamos are frequently based on the basic principle that an electromagnet rotates in the field of a permanent magnet (or several of them).
Tasks
Examine the behavio ...
The stator field of an electric motor can be generated by an electromagnet, which is then called the excitationwinding. In series motors, the excitation winding is switched in series with the armature winding of the rotor.This type of motor is sometim ...
This experiment is designed to show the magnetic property of a coil and so bring an understanding of the role it plays in an electric motor or generator.
Task
Compare the magnetic field of a permanent magnet with th ...
This experiment explains how electric energy can be converted to energy of motion in an electric motor.
Examine the behaviour of a coil that is pivoted so that it can turn in the magnetic field of a U-shaped ma ...
This is the last step towards being able to understand how a complete electric motor is constructed. It teaches how a current reverser works and which function it undertakes in an electric motor.
Examine ...
This experiment is to demonstrate the mode of functioning of a synchronous motor.
Set up a motor that can be driven by alternating current. First with an electromagnet as rotor and a permanent magnet as stator ...
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