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CHAP 22 (52) THE magnetic field created by a large current passing through plasma can tore current- carying particles together. This pinch effect has been used in designing fusion reactors. It can be demon'strated by makiny an empty aluminum can carry a large current parallel to its axis. Let 'R represent the radius of the can' and I' the current, uniformly distributed over the can's curved wall. Determine the magnettic field (a) just inside the wall and (6) just outside. (c) Determine the pressure on the wall.

CHAP 22 (52) THE magnetic field created by a large current passing through plasma can tore current- carying particles together. This pinch effect has been used in designing fusion reactors. It can be demon'strated by makiny an empty aluminum can carry a large current parallel to its axis. Let 'R represent the radius of the can' and I' the current, uniformly distributed over the can's curved wall. Determine the magnettic field (a) just inside the wall and (6) just outside. (c) Determine the pressure on the wall.

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Can anyone steer me in the direction of what I am doing wrong here? I guess that part a is supposed to be zero which I’m not sure why... wait a second... as I’m writing this I think I get it. Is it because the current is only on the can’s wall? Like for Gauss’s Law problems... since the current is only on the outside, there is none going through the small loop? I guess I just needed to say it out loud! I’m not sure where to start for part C... thanks!
20 (1,26,32, 39,41,45,49,55,59) CHAP 22 (52) 21 (26) 55 RAP THE Magnetic field created by. a large current passing through plasma can ne bre current- carying particles "together. This pinch effect has been fte used in designing fusion reactors. It can be demon'strated by makiny an empty aluminum can carry a large current parallel to its axis. Let 'R represent the radius of the can' and I' the current, uni formly distributed over the can's Det curved wall. Determine the magnettic field (a) just inside the wall and (b) mas just outside. (c) Determine the pressure on the wall. B.dồ = MoI rig Mo= 4 X10-'T,m/A a) raR Loop@ Bfds = MoI the wire loop 2 is. TTRZ 8ZTV = Mo Ik B=MOIT 21 R2 B)r>R BII to d} → Bds (cos o°)= &ds %3D f Bds - M, I CRCUMPERENKE OF Loof B. ZTTr= M.I B= MoI 2r Directed in a CcW direction tangent to the O LOOP
Transcribed Image Text:20 (1,26,32, 39,41,45,49,55,59) CHAP 22 (52) 21 (26) 55 RAP THE Magnetic field created by. a large current passing through plasma can ne bre current- carying particles "together. This pinch effect has been fte used in designing fusion reactors. It can be demon'strated by makiny an empty aluminum can carry a large current parallel to its axis. Let 'R represent the radius of the can' and I' the current, uni formly distributed over the can's Det curved wall. Determine the magnettic field (a) just inside the wall and (b) mas just outside. (c) Determine the pressure on the wall. B.dồ = MoI rig Mo= 4 X10-'T,m/A a) raR Loop@ Bfds = MoI the wire loop 2 is. TTRZ 8ZTV = Mo Ik B=MOIT 21 R2 B)r>R BII to d} → Bds (cos o°)= &ds %3D f Bds - M, I CRCUMPERENKE OF Loof B. ZTTr= M.I B= MoI 2r Directed in a CcW direction tangent to the O LOOP
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