Exploring Electromagnet Strength
Hard
Have you ever wondered how the strength of an electromagnet is affected by the flow of electricity? Find out with this simple experiment! Connect a wire between the positive and negative ends of a battery and observe how the compass needle swings.
Hypothesis
The hypothesis is that the strength of an electromagnet is affected by the flow of electricity.
Method & Materials
You will connect a wire between the positive and negative ends of a battery and observe how the compass needle swings.
You will need one AA, C or D-cell battery, a piece of wire, and a compass.
Results
When the wire is connected to the battery, the compass needle swings because the needle is a small magnet that is sensitive to small magnetic fields. This shows that the strength of an electromagnet is affected by the flow of electricity.
Why do this project?
This science project is interesting because it demonstrates how the strength of an electromagnet is affected by the flow of electricity in a simple and fun way.
Also Consider
Experiment variations to consider include using different types of batteries and different lengths of wire.
Full project details
You can find additional information and details for this science fair project here. Have fun exploring!Related video
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