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Electromagnets and the number of coilsFeatured science projectScience project video

Observation

The results show that increasing the number of turns in an electromagnet's coil, will result in an increase in the induced voltage caused by the changing magnetic field.

Number of turns in the coil

150

300

450

AC voltage measured (V)

2.45

4.90

7.35

The graph below represents the results of our experiment.

electromagnets science fair project

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Complexity level:
8
Project cost ($):
70
Time required:
1 day to prepare, 1 day for experiment
Material availability:
The wires can be purchased at a hardware shop.
Safety concerns:

Basic safety requirements