
#1
Mar2913, 02:48 AM

P: 50

I just want to gain a ballpark estimate for how much force an MRI machine can generate on a small object such as a nail.. lets say the magnet is 12 Tesla. Very rough estimates are ok.




#2
Mar2913, 07:50 AM

Mentor
P: 10,846

It depends on the volume of the nail. Of the order of 3N/cm^3 (for iron/steel nails).
In terms of acceleration, the volume cancels, and we get something like 45g, where g is the gravitational acceleration on earth. It is important to have an inhomogeneous field  I assumed a typical length scale of 1m here. 


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