update with 10mm z length

comsol/coil-coil-force.csv

 % Model,coil-coil-speaker.mph
 % Version,COMSOL 5.3.1.275
-% Date,"Dec 6 2018, 18:31"
+% Date,"Dec 6 2018, 22:51"
 % Table,"Table 1 - Global Evaluation 1 (mf.Forcex_0, mf.Forcey_0)"
-% n_base,gap (um),"Electromagnetic force, y component (N)","Electromagnetic force, y component (N)"
-10,300,-0.08207832378554145,-0.08207832378554127
-10,399.99999999999994,-0.07207995122423291,-0.07207995122423318
-10,500,-0.06373598062465724,-0.06373598062465777
-10,600,-0.0566827914620302,-0.0566827914620302
-10,700,-0.0506489792651917,-0.050648979265191414
-10,799.9999999999999,-0.04545350371480208,-0.045453503714802175
-15,300,-0.10360535584513815,-0.10360535584513784
-15,399.99999999999994,-0.0933795780919582,-0.09337957809195868
-15,500,-0.08452823010679891,-0.08452823010679804
-15,600,-0.07677324661102114,-0.07677324661102099
-15,700,-0.06992593745049328,-0.06992593745049319
-15,799.9999999999999,-0.06385954116102241,-0.06385954116102234
-20,300,-0.11733593022414841,-0.1173359302241507
-20,399.99999999999994,-0.10815248353435279,-0.10815248353435303
-20,500,-0.09987214162066027,-0.0998721416206589
-20,600,-0.0923865951283783,-0.09238659512837842
-20,700,-0.08555875581043242,-0.08555875581043178
-20,799.9999999999999,-0.07932920066366841,-0.07932920066366683
-25,300,-0.12632287888983637,-0.12632287888983676
-25,399.99999999999994,-0.11833786175619836,-0.11833786175619584
-25,500,-0.11100748269901356,-0.11100748269901378
-25,600,-0.1041951104803409,-0.10419511048034096
-25,700,-0.09782299733157954,-0.0978229973315815
-25,799.9999999999999,-0.09185694713120071,-0.0918569471312006
-30,300,-0.13243670824432408,-0.1324367082443262
-30,399.99999999999994,-0.1255622679167983,-0.12556226791679798
-30,500,-0.11915997994561496,-0.11915997994561418
-30,600,-0.11308691704329457,-0.11308691704329465
-30,700,-0.1073357944779216,-0.10733579447792117
-30,799.9999999999999,-0.10184917943757642,-0.10184917943757658
-35,300,-0.13677056452536177,-0.13677056452536293
-35,399.99999999999994,-0.13080203713586655,-0.13080203713586697
-35,500,-0.12520532188410496,-0.125205321884104
-35,600,-0.11987380567515953,-0.11987380567516014
-35,700,-0.11473430806567451,-0.1147343080656759
-35,799.9999999999999,-0.10976340358680196,-0.10976340358680212
-40,300,-0.13990717323235577,-0.13990717323235657
-40,399.99999999999994,-0.13464194505199106,-0.1346419450519912
-40,500,-0.12971940000903395,-0.1297194000090345
-40,600,-0.1250385352876598,-0.12503853528766032
-40,700,-0.12048766714948608,-0.12048766714948725
-40,799.9999999999999,-0.11605950233797482,-0.11605950233797617
-45,300,-0.14211371951863244,-0.14211371951863422
-45,399.99999999999994,-0.13748934375145,-0.1374893437514511
-45,500,-0.1331845458640706,-0.13318454586407008
-45,600,-0.12904000501347995,-0.1290400050134822
-45,700,-0.12500747238217932,-0.12500747238217835
-45,799.9999999999999,-0.12106189037455688,-0.12106189037455767
-50,300,-0.1438017496948447,-0.1438017496948458
-50,399.99999999999994,-0.13962160946955932,-0.1396216094695604
-50,500,-0.1357819565413621,-0.13578195654136546
-50,600,-0.13211486751869694,-0.13211486751869667
-50,700,-0.12856833135755893,-0.12856833135755996
-50,799.9999999999999,-0.1250506633749004,-0.12505066337490012
+% n_base,gap (um),"Electromagnetic force, y component (N)"
+10,300,-8.207832378554224E-4
+10,399.99999999999994,-7.207995122423366E-4
+10,500,-6.373598062465735E-4
+10,600,-5.668279146202967E-4
+10,700,-5.064897926519176E-4
+10,799.9999999999999,-4.545350371480201E-4
+15,300,-0.0010360535584513712
+15,399.99999999999994,-9.337957809195792E-4
+15,500,-8.452823010679742E-4
+15,600,-7.677324661102147E-4
+15,700,-6.992593745049363E-4
+15,799.9999999999999,-6.385954116102236E-4
+20,300,-0.0011733593022414785
+20,399.99999999999994,-0.0010815248353435115
+20,500,-9.9872141620659E-4
+20,600,-9.238659512837859E-4
+20,700,-8.555875581043162E-4
+20,799.9999999999999,-7.932920066366735E-4
+25,300,-0.001263228788898366
+25,399.99999999999994,-0.0011833786175619435
+25,500,-0.0011100748269901298
+25,600,-0.0010419511048034044
+25,700,-9.782299733158079E-4
+25,799.9999999999999,-9.185694713119977E-4
+30,300,-0.001324367082443255
+30,399.99999999999994,-0.0012556226791680047
+30,500,-0.0011915997994561393
+30,600,-0.001130869170432946
+30,700,-0.0010733579447792132
+30,799.9999999999999,-0.0010184917943757493
+35,300,-0.0013677056452536273
+35,399.99999999999994,-0.001308020371358667
+35,500,-0.0012520532188410615
+35,600,-0.0011987380567515893
+35,700,-0.0011473430806567548
+35,799.9999999999999,-0.0010976340358680183
+40,300,-0.00139907173232355
+40,399.99999999999994,-0.0013464194505199137
+40,500,-0.001297194000090337
+40,600,-0.0012503853528765914
+40,700,-0.0012048766714948624
+40,799.9999999999999,-0.0011605950233797538
+45,300,-0.001421137195186344
+45,399.99999999999994,-0.0013748934375145097
+45,500,-0.0013318454586407225
+45,600,-0.0012904000501348122
+45,700,-0.0012500747238217797
+45,799.9999999999999,-0.001210618903745563
+50,300,-0.0014380174969484383
+50,399.99999999999994,-0.0013962160946956012
+50,500,-0.001357819565413643
+50,600,-0.0013211486751869839
+50,700,-0.0012856833135755695
+50,799.9999999999999,-0.0012505066337490083

comsol/magnet-coil-force.csv

+% Model,magnet-coil-speaker.mph
+% Version,COMSOL 5.3.1.275
+% Date,"Dec 6 2018, 22:31"
+% Table,"Table 1 - Global Evaluation 1 (mf.Forcex_0, mf.Forcey_0)"
+% magnet_w (mm),gap (um),"Electromagnetic force, y component (N)"
+1,300,0.24172869357245622
+1,399.99999999999994,0.2018148846207476
+1,500,0.17101635635055956
+1,600,0.14762186580664904
+1,700,0.13057299341265935
+1,799.9999999999999,0.11903870432250468
+1.5,300,0.3378309175091848
+1.5,399.99999999999994,0.2966579204564392
+1.5,500,0.26172234744391
+1.5,600,0.23216241906686136
+1.5,700,0.2071449854185484
+1.5,799.9999999999999,0.18617696545847962
+2,300,0.38783777072962955
+2,399.99999999999994,0.3524313770335993
+2,500,0.3205920341135649
+2,600,0.2920201704741935
+2,700,0.2664031407330548
+2,799.9999999999999,0.24376527396810072
+2.5,300,0.40002166279834667
+2.5,399.99999999999994,0.37339898271446503
+2.5,500,0.34772305611534504
+2.5,600,0.32334202008163104
+2.5,700,0.30062392834124096
+2.5,799.9999999999999,0.27960879083837187
+3,300,0.39621510759941514
+3,399.99999999999994,0.37766366546060987
+3,500,0.35823391103739805
+3,600,0.33875563835371736
+3,700,0.31968858859638394
+3,799.9999999999999,0.30140223300869395
+3.5,300,0.38835746460416254
+3.5,399.99999999999994,0.37576085663317277
+3.5,500,0.3615370823649242
+3.5,600,0.3463182242873707
+3.5,700,0.3307080004477822
+3.5,799.9999999999999,0.31532495126707777
+4,300,0.3796346065693359
+4,399.99999999999994,0.371265873378313
+4,500,0.36086097502292996
+4,600,0.3491637942588855
+4,700,0.33675676982057706
+4,799.9999999999999,0.3239385426447185