Can a Simple Electromagnet Lift Tuna Cans?

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SUMMARY

The discussion centers on building a simple electromagnet capable of lifting 8 ounces from a distance of 2-3 inches, specifically designed to pick up magnetic tuna cans. The user seeks a low-cost solution utilizing readily available materials and a power supply of approximately 7.4 volts. Forum members emphasize the importance of understanding the underlying principles of electromagnetism rather than seeking a straightforward solution without learning. They encourage a more educational approach to the project.

PREREQUISITES
  • Basic principles of electromagnetism
  • Understanding of electrical circuits
  • Familiarity with wire gauge and resistance
  • Knowledge of power supply specifications
NEXT STEPS
  • Research "How to build an electromagnet" for step-by-step guides
  • Explore basic electrical circuit design
  • Learn about wire gauge and its impact on electromagnet strength
  • Investigate the effects of voltage on electromagnet performance
USEFUL FOR

This discussion is beneficial for students, hobbyists, and anyone interested in basic electromagnet construction and the principles of electromagnetism.

sushiman1841
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I need to build an electromagnet that is able to pick up 8 ounces from 2-3 inches below it. the tuna cans are magnetic and are full of tuna. I have limited funds but have a lot of wire and stuff at home. the electromagnet will be powered at approx. 7.4 volts. i would like the electromagnet to be easily buildable and not require complex calculations and advanced knowledge. please help..

Thank you in advance!
 
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Have you tried a google search for "How to build an electromagnet"? I'm betting there are plenty of sites out there than can show you step by step.
 
sushiman1841,

Welcome to PF!

This sounds like a science competition for school, so it is probably more appropriate in the homework section.

Furthermore, stating:

i would like the electromagnet to be easily buildable and not require complex calculations and advanced knowledge.

is not likely to get you much "scientific" help. I mean no disrespect, but the purpose of this forum, as I understand it, is to promote knowledge. Having other people solve your challenges without imparting knowledge to you is not in your own best interest.

When you decide to make an effort to "learn", I can promise that people here will help you, but if you just want people here to solve a problem for you so that you can get a prize, it is not likely you will get much help.

I wish you the very best,

Fish
 

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