Electromagnetic induction
Assignment
- Make familiar with the experiment Electromagnetic induction - the rotating coil in homogeneous magnetic field.
- Measure induced electromotive voltage on the angular frequency of the rotating coil, save the data. Make the measurements for 10 values of the angular frequency of the coil.
- Verify the validity of the Faraday's law using relation (5) and determine, how the amplitude uo of induced electromotive force depends on the angular frequency of the coil ω. Make a graph of the amplitude of the electromotive force on the frequency of rotation.
- Verify validity of Faraday's law using relation (6). and determine how a definite integral of induced electromotive force
depends on the angular frequency of the rotation of the coil ω for several values of the angular frequencies ω.
- Discuss differences between measured and theoretical dependencies.
- As a future teacher, discuss the possibilities of remote experiments.
- Work out a report with the following items
- Introduction into the technology of the remote experiment.
- Physical introduction to the phenomenon observed.
- Description of the experiment and its arrangement, used tools and the sample of real measured data.
- Results obtained.
- Discussion of the achieved results and the remote experiment.
- For advanced: - - - Not possible at the moment - - -
Acquaint with the experiment of the rotating magnet with a fixed coil http://kdt-20.karlov.mff.cuni.cz. Try to work out a detailed analyse of the time course of the electromotive force. Further in the task follow the same steps as in the case of the rotating coil.
