Is the Lenz Effect in a superconducting magnet strong enough to stop a bullet?

AI Thread Summary
The discussion centers on the potential of the Lenz Effect in a 1.5T superconducting magnet to stop a bullet. While the phenomenon is intriguing, practical considerations such as the feasibility of producing and implementing such a strong magnetic field are crucial. The conversation highlights the need to evaluate whether the benefits of using this technology for military defense outweigh the complexities involved. Additionally, the size and strength of the magnetic field required for effective application are significant factors. Overall, while the concept is theoretically interesting, practical applications remain uncertain.
stevenstritt
Messages
13
Reaction score
0
After watching a fascinating youtube video demonstrating the Lenz Effect using a 1.5T MRI machine and an aluminum block, I was wondering if it would stop a bullet fired along the axis of the machine. If so, would there be any defensive military application?
 
Physics news on Phys.org
stevenstritt said:
After watching a fascinating youtube video demonstrating the Lenz Effect using a 1.5T MRI machine and an aluminum block, I was wondering if it would stop a bullet fired along the axis of the machine. If so, would there be any defensive military application?

When you ask something like this, you need to think further and see if the result is worth the effort. Note what is involved in producing a 1.5 T magnet. The question on "application" must now include how reasonable and practical it can be implemented, not just if it is physically possible. So there are other factors involved here.

And we haven't even talked about how large of a field this 1.5 T magnet must produce.

Zz.
 
This is from Griffiths' Electrodynamics, 3rd edition, page 352. I am trying to calculate the divergence of the Maxwell stress tensor. The tensor is given as ##T_{ij} =\epsilon_0 (E_iE_j-\frac 1 2 \delta_{ij} E^2)+\frac 1 {\mu_0}(B_iB_j-\frac 1 2 \delta_{ij} B^2)##. To make things easier, I just want to focus on the part with the electrical field, i.e. I want to find the divergence of ##E_{ij}=E_iE_j-\frac 1 2 \delta_{ij}E^2##. In matrix form, this tensor should look like this...
Thread 'Applying the Gauss (1835) formula for force between 2 parallel DC currents'
Please can anyone either:- (1) point me to a derivation of the perpendicular force (Fy) between two very long parallel wires carrying steady currents utilising the formula of Gauss for the force F along the line r between 2 charges? Or alternatively (2) point out where I have gone wrong in my method? I am having problems with calculating the direction and magnitude of the force as expected from modern (Biot-Savart-Maxwell-Lorentz) formula. Here is my method and results so far:- This...

Similar threads

Back
Top