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Project title Electromagnets and the number of coilsFeatured science projectScience project video
Difficulty Level High school
Project page  Click here to view this science project

Description
This experiment was done to investigate the relationship between the number of turns in a coil and the voltage induced in it by a moving magnet. 

Instructions preview
1. For this science project, the independent variable is the number of turns in the coil. The dependent variable is the amount of voltage induced in the coils by the rotating magnet. This is measured by using the digital voltmeter. The constants (control variables) are the speed of the rotating magnets, the strength of the magnets, the size of the copper wire and the size of the box. 2. Using the masking tape, the four magnets are fixed to the shaft of the electric screw driver as shown in figure 1 above. 3. A hole is cut out of .....
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