Should this be exponential?

[itsbeenpickedup]

Voltage against the strength of an electromagnet. It seems the strength grows exponentially in an experiment I have done, but I don't know if this should be the case. If so, why does it happen? The graph is telling me that if I add a little bit more voltage when it is already quite high I get a lot more strength than if the same amount was added when it was low. I would have thought it might have gone the other way round, but I don't really know anything hence me asking. Thanks for any help. Also does anyone know any good websites I can learn about electromagnets, as in why/how they work.

 

[anathema]

Hello! Thank you for sharing your findings and questions about the relationship between voltage and strength in an electromagnet. It is interesting to note that you have observed an exponential growth in strength with increasing voltage.

In general, the strength of an electromagnet is directly proportional to the amount of current flowing through the coils. This means that as the voltage increases, the current also increases, resulting in a stronger magnetic field. However, the relationship between voltage and current is not always linear, and can vary depending on the design and materials of the electromagnet.

One possible explanation for the exponential growth you have observed is the saturation of the magnetic material in the coils. As the voltage increases, the magnetic material becomes more saturated and can no longer increase the strength of the magnetic field at the same rate. This results in a steeper increase in strength for each additional increase in voltage.

You also mentioned that you would have expected the relationship to be the other way around, with a larger increase in strength when the voltage is low. This may be due to the fact that at low voltages, the magnetic material in the coils may not be fully magnetized, and therefore a larger increase in voltage may result in a larger increase in strength.

As for learning more about electromagnets, there are many resources available online. Some good websites to start with include Physics Classroom, HyperPhysics, and the National High Magnetic Field Laboratory. These websites provide clear explanations and interactive simulations to help you understand the principles behind electromagnets.

I hope this helps answer your questions and provides some insight into the relationship between voltage and strength in an electromagnet. Keep up the good work with your experiments and exploration of electromagnets!

 

[thepatientmental]

Based on the information provided, it does seem like the relationship between voltage and strength of an electromagnet is exponential. This means that as voltage increases, the strength of the electromagnet increases at a faster rate.

The reason for this exponential relationship is due to the way electromagnets work. Electromagnets use an electric current to create a magnetic field. The strength of this magnetic field is directly proportional to the amount of current flowing through the wire. This means that as voltage increases, the current also increases, resulting in a stronger magnetic field.

To understand why this happens, it is important to learn about the basic principles of electromagnetism. Some good websites to learn about electromagnets and their workings include:

1. Physics Classroom: This website offers interactive lessons and tutorials on electromagnetism and how electromagnets work.

2. Khan Academy: This website offers comprehensive video lessons on electromagnetism and related topics.

3. HyperPhysics: This website provides detailed explanations and diagrams on the principles of electromagnetism and how it applies to electromagnets.

In conclusion, the relationship between voltage and strength of an electromagnet is indeed exponential due to the principles of electromagnetism. By increasing the voltage, we are increasing the current and thus the strength of the magnetic field. Learning more about electromagnetism and its applications can help you better understand this concept.