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• # Electromagnetism

Discussion in 'Calculations' started by chil020, Jun 14, 2012.

1. ### chil020New Member

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Anyone here have an equation to predict the forces given by an electrotromagnet on an object based on wire size current and coil diameter? I want to replace a mechanical lever system and think this maybe a useful equation for a feasibility study if I can get some understanding how these magnet systems work. Any help most appreciated in advance.

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3. ### cwarner7_11Well-Known Member

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You might find what you are looking for here.

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5. ### chil020New Member

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Thanks guys excellent ref for sure. Appreciated.

6. ### kjwissingNew Member

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I'm afraid the equation is anything but straightforward. I just did this quest recently. Here's a few rules of thumb to get you started...

The optimal outer diameter of a coil of wire should be 3 times the inner diameter. The optimal wire diameter is directly proportional to the coil diameter. The length of wire should be enough to provide about the same electrical resistance as your power source.

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