- #31
Darryl
- 126
- 5
yes, that link is broken for me as well Danger.
it tries hard..
it tries hard..
Some questions regarding Electromagnetism
- Thread starter apples
- Start date
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- Tags
- Electromagnetism
Click For Summary
Discussion Overview
The discussion revolves around various questions related to electromagnetism, specifically focusing on building devices such as electromagnets, transformers, AC generators, and solenoids for a small-scale amusement park ride project. Participants seek advice on the technical aspects and feasibility of these projects.
Discussion Character
- Exploratory
- Technical explanation
- Homework-related
- Debate/contested
Main Points Raised
- One participant inquires about the strength of an electromagnet and how to achieve sufficient magnetic force to lift a weight of 3-5 kg, questioning the effect of wrapping wire around a magnet.
- Another participant suggests that purchasing off-the-shelf electromagnets may be simpler and safer than building one, citing a specific product that operates on 2 'D' cell batteries.
- There is a discussion about the potential issues with using a solenoid for a banner-raising device, with suggestions for alternative mechanisms involving pivoted swing-arms or pulley systems.
- Participants express uncertainty about the construction of a transformer-like device to control voltage, with one suggesting a potentiometer as a possible solution for adjusting current smoothly.
- Questions arise regarding the construction of an AC generator and the use of a commutator to switch current continuously, with warnings about the dangers of working with alternators.
- Clarifications are made about the materials needed for building an electromagnet, emphasizing the importance of using ferromagnetic materials and the complexity of relating magnetic field strength to lifting capability.
Areas of Agreement / Disagreement
Participants do not reach a consensus on the best methods for constructing the devices discussed. There are multiple competing views on the feasibility of DIY solutions versus purchasing ready-made components, and uncertainty remains regarding the specifics of building the electromagnet, transformer, and AC generator.
Contextual Notes
Some participants note that the original poster's questions may reflect a misunderstanding of the complexities involved in electrical engineering concepts, indicating that further clarification may be needed. Additionally, there are unresolved technical details regarding the construction and operation of the proposed devices.