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Potential energy in Gauss' gun
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[QUOTE="berkeman, post: 5686798, member: 8921"] I didn't know that bar magnets could be used with a coil gun. But I'm certainly no coil gun expert. You would need to constrain the path of the short bar magnet so that it can't rotate as it travels down the length of the coil gun, it would seem. Some sort of a plastic barrel maybe? I believe you can look at how magnetic solenoid actuators work (where energizing the coil pulls the metal shaft into the body of the coil. It is the gradient of the magnetic field that generates the force (at least when the ball bearing is not magnetized), AFAIK. [/QUOTE]
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Potential energy in Gauss' gun
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