- #1
greypilgrim
- 547
- 38
Hi.
Very simplified schematics of railguns all look like this:
I have trouble properly understanding this. So apparently there is still a significant magnetic field where the projectile is, even though that's where the current stops flowing through the rails? Of course the magnetic field doesn't just stop there, there's a fringe field, but that has to be a lot weaker than the magnetic field between two wires far from the ends, doesn't it?
Would it make sense to build the projectile like this to move the crossing wire further inside the magnetic field:
Of course, the parts of the projectile (anti-)parallel to the rails would create an opposing magnetic field. But since this field is created by the projectile itself, it shouldn't be taken into account for the Lorentz force acting on the projectile. Or should it?
Very simplified schematics of railguns all look like this:
I have trouble properly understanding this. So apparently there is still a significant magnetic field where the projectile is, even though that's where the current stops flowing through the rails? Of course the magnetic field doesn't just stop there, there's a fringe field, but that has to be a lot weaker than the magnetic field between two wires far from the ends, doesn't it?
Would it make sense to build the projectile like this to move the crossing wire further inside the magnetic field:
Of course, the parts of the projectile (anti-)parallel to the rails would create an opposing magnetic field. But since this field is created by the projectile itself, it shouldn't be taken into account for the Lorentz force acting on the projectile. Or should it?
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