Faraday’s law 

The title of the Project: Faraday’s law 

Purpose of the work:

  • Study Faraday’s law of induction.

Practical part

This is a little instruction to the virtual experiment.

Virtual experiment.

Step 1. Turn on the voltmeter and field lines of the magnet.

Step 2. Pass the magnet through the coil. What happens?

Step 3. Notice that the voltmeter records voltage only when the magnet enters and exits the coil. This is when the magnetic field changes and induces electromotive force (emf). 

Step 4. Switch to 2 coils. Pass the magnet though the coil with a smaller number of turns. 

Step 5. Pass the magnet though the coil with a bigger number of turns. What is the difference?

Step 6. Change the polars of the magnet. What happens? The magnetic field changes and this change induces emf.

Step 7. Make a conclusion.

Conclusion

The Faraday’s law of induction states that changes in magnetic field induces emf. The electromotive force is directly proportional to the number of turns of the coil.