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From my old Physics, the first thing I thought of was Maxwell's Equations. I googled for "Maxwell Lorentz straight wire" and got alot of hits, like

Free Maxwell book with real solved problems See Chapter4 Problems for straight wire.

Maxwell Answers Search for Oersted on that page.

The big problem as I see it, is what are the assumptions made to simplify calculations. For instance, do you assume a uniform temperature always( affects resistance)? Another simplification would be assuming the wire has 0 radius, otherwise you need to account for different current flow at the skin versus the center. You might want to ask in the newsgroup sci.physics.

If you wanted some real world examples, I would also look at Electrical Engineering sites for examples of power line computations. I'm sure somewhere, some EE has a rule of thumb calculation for the Force on his power lines, especially at substations where short connections are made at high power. Maybe there is a Schaum's Outline Guide for Electrical Engineering, which contains simplified calculations and solutions for common problems?

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In reply to Re: (way)(OT): Lorentz Force worked numerical example. by zentara
in thread (way)(OT): Lorentz Force worked numerical example. by BrowserUk

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