marcusl

Hey Marcus, i was wondering if you could help me with something you solved a long time ago. Im referring to this thread: http://www.physicsforums.com/showthread.php?t=161491 ...i was wondering if you could help me with the magnetic field on any point along the plane with both axes of the cylinders. Whenever i try to work it out i keep coming to the same conclusion that the magnetic field is constant (as it is inside the hole). Is that right? Because wouldnt the difference of the distance vectors still be equal from r1 to r2?
Thanks

Sir,
Actually i am fabricating a vibration shaker table with a spring-mass system of very low cost budget. I'm using two plates in this with a springs in between. Top plate can vibrate a component of mass less than 200 grams. What all components can i vibrate in my shaker table assembly. How to calculate the resonance frequency of my top plate.. Is there any software for analysis of vibrations.