Home » Archimedes archive » Acorn User » AU 1997-01 B.adf » Regulars » StarInfo/Allen/!Ignotum/Formulae/Formulae/Fiel
StarInfo/Allen/!Ignotum/Formulae/Formulae/Fiel
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Acorn User » AU 1997-01 B.adf » Regulars |
| Filename: | StarInfo/Allen/!Ignotum/Formulae/Formulae/Fiel |
| Read OK: | ✔ |
| File size: | 080B bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
# Physics > Field and Potential # New entries should take the form of: # Formula # Note 1 # Note 2 # Note 3 # Note 4 # Note 5 # Formula # Note 1 # And so on... # To fit snugly into the window, each line should be no longer # than 42 characters. # There is a limit of 25 formulas per topic. # Any notes should be made here, at the beginning and should # be preceeded by a hash (#). E=F/Q For an electrical field: E=field strength F=force on object in the field Q=charge on object in the field E=V/d For a uniform electrical field between two parallel plates: E=field strength V=potential difference across plates d=distance between plates E=o/e0 For a uniform electrical field between two parallel plates: E=field strength, o=charge density e0=permittivity of free space: 8.85�10^-12 C�/Nm� C=e0erA/d For a parallel plate capacitor: C=capacitance (F) e0=permittivity of free space er=relative permittivity A=plate area, d=distance between plates F=kQq/r� Where: F=electrl force between 2 charged objects k=force constant=8.98�10^9 Nm�/C� Q and q are the two charges r=the distance between the two charges E=kQ/r� Where: E=electrical field strength k=force constant=8.98�10^9 Nm�/C� Q=charge on object r=distance to object V=kQ/r Where: V=electric potential k=force constant=8.98�10^9 Nm�/C� Q=charge on object r=distance to object g=F/m Where: g=gravitational field strength (N/kg) F=force on object (N) m=mass of object (kg) F=-GMm/r� Where: F=gravitational force between two objects G=grav force constant=6.67�10^-11 Nm�/kg� M and m are the two masses r=distance between the two objects g=-GM/r� Where: g=gravitational field strength (N/kg) G=grav force constant=6.67�10^-11 Nm�/kg� M=mass of object r=distance to object V=-GM/r Where: V=gravitational potential G=grav force constant=6.67�10^-11 Nm�/kg� M=mass of object r=distance to object V=gh Where: V=gravitational potential in a uniform field g=gravitational field strength h=height
00000000 23 20 50 68 79 73 69 63 73 20 3e 20 46 69 65 6c |# Physics > Fiel| 00000010 64 20 61 6e 64 20 50 6f 74 65 6e 74 69 61 6c 0a |d and Potential.| 00000020 0a 23 20 4e 65 77 20 65 6e 74 72 69 65 73 20 73 |.# New entries s| 00000030 68 6f 75 6c 64 20 74 61 6b 65 20 74 68 65 20 66 |hould take the f| 00000040 6f 72 6d 20 6f 66 3a 0a 23 20 20 20 20 20 46 6f |orm of:.# Fo| 00000050 72 6d 75 6c 61 0a 23 20 20 20 20 20 4e 6f 74 65 |rmula.# Note| 00000060 20 31 0a 23 20 20 20 20 20 4e 6f 74 65 20 32 0a | 1.# Note 2.| 00000070 23 20 20 20 20 20 4e 6f 74 65 20 33 0a 23 20 20 |# Note 3.# | 00000080 20 20 20 4e 6f 74 65 20 34 0a 23 20 20 20 20 20 | Note 4.# | 00000090 4e 6f 74 65 20 35 0a 23 20 20 20 20 20 46 6f 72 |Note 5.# For| 000000a0 6d 75 6c 61 0a 23 20 20 20 20 20 4e 6f 74 65 20 |mula.# Note | 000000b0 31 0a 23 20 20 20 20 20 41 6e 64 20 73 6f 20 6f |1.# And so o| 000000c0 6e 2e 2e 2e 0a 23 20 54 6f 20 66 69 74 20 73 6e |n....# To fit sn| 000000d0 75 67 6c 79 20 69 6e 74 6f 20 74 68 65 20 77 69 |ugly into the wi| 000000e0 6e 64 6f 77 2c 20 65 61 63 68 20 6c 69 6e 65 20 |ndow, each line | 000000f0 73 68 6f 75 6c 64 20 62 65 20 6e 6f 20 6c 6f 6e |should be no lon| 00000100 67 65 72 0a 23 20 74 68 61 6e 20 34 32 20 63 68 |ger.# than 42 ch| 00000110 61 72 61 63 74 65 72 73 2e 0a 23 20 54 68 65 72 |aracters..# Ther| 00000120 65 20 69 73 20 61 20 6c 69 6d 69 74 20 6f 66 20 |e is a limit of | 00000130 32 35 20 66 6f 72 6d 75 6c 61 73 20 70 65 72 20 |25 formulas per | 00000140 74 6f 70 69 63 2e 0a 0a 23 20 41 6e 79 20 6e 6f |topic...# Any no| 00000150 74 65 73 20 73 68 6f 75 6c 64 20 62 65 20 6d 61 |tes should be ma| 00000160 64 65 20 68 65 72 65 2c 20 61 74 20 74 68 65 20 |de here, at the | 00000170 62 65 67 69 6e 6e 69 6e 67 20 61 6e 64 20 73 68 |beginning and sh| 00000180 6f 75 6c 64 0a 23 20 62 65 20 70 72 65 63 65 65 |ould.# be precee| 00000190 64 65 64 20 62 79 20 61 20 68 61 73 68 20 28 23 |ded by a hash (#| 000001a0 29 2e 0a 0a 45 3d 46 2f 51 0a 46 6f 72 20 61 6e |)...E=F/Q.For an| 000001b0 20 65 6c 65 63 74 72 69 63 61 6c 20 66 69 65 6c | electrical fiel| 000001c0 64 3a 0a 45 3d 66 69 65 6c 64 20 73 74 72 65 6e |d:.E=field stren| 000001d0 67 74 68 0a 46 3d 66 6f 72 63 65 20 6f 6e 20 6f |gth.F=force on o| 000001e0 62 6a 65 63 74 20 69 6e 20 74 68 65 20 66 69 65 |bject in the fie| 000001f0 6c 64 0a 51 3d 63 68 61 72 67 65 20 6f 6e 20 6f |ld.Q=charge on o| 00000200 62 6a 65 63 74 20 69 6e 20 74 68 65 20 66 69 65 |bject in the fie| 00000210 6c 64 0a 0a 45 3d 56 2f 64 0a 46 6f 72 20 61 20 |ld..E=V/d.For a | 00000220 75 6e 69 66 6f 72 6d 20 65 6c 65 63 74 72 69 63 |uniform electric| 00000230 61 6c 20 66 69 65 6c 64 20 62 65 74 77 65 65 6e |al field between| 00000240 0a 74 77 6f 20 70 61 72 61 6c 6c 65 6c 20 70 6c |.two parallel pl| 00000250 61 74 65 73 3a 0a 45 3d 66 69 65 6c 64 20 73 74 |ates:.E=field st| 00000260 72 65 6e 67 74 68 0a 56 3d 70 6f 74 65 6e 74 69 |rength.V=potenti| 00000270 61 6c 20 64 69 66 66 65 72 65 6e 63 65 20 61 63 |al difference ac| 00000280 72 6f 73 73 20 70 6c 61 74 65 73 0a 64 3d 64 69 |ross plates.d=di| 00000290 73 74 61 6e 63 65 20 62 65 74 77 65 65 6e 20 70 |stance between p| 000002a0 6c 61 74 65 73 0a 45 3d 6f 2f 65 30 0a 46 6f 72 |lates.E=o/e0.For| 000002b0 20 61 20 75 6e 69 66 6f 72 6d 20 65 6c 65 63 74 | a uniform elect| 000002c0 72 69 63 61 6c 20 66 69 65 6c 64 20 62 65 74 77 |rical field betw| 000002d0 65 65 6e 0a 74 77 6f 20 70 61 72 61 6c 6c 65 6c |een.two parallel| 000002e0 20 70 6c 61 74 65 73 3a 0a 45 3d 66 69 65 6c 64 | plates:.E=field| 000002f0 20 73 74 72 65 6e 67 74 68 2c 20 6f 3d 63 68 61 | strength, o=cha| 00000300 72 67 65 20 64 65 6e 73 69 74 79 0a 65 30 3d 70 |rge density.e0=p| 00000310 65 72 6d 69 74 74 69 76 69 74 79 20 6f 66 20 66 |ermittivity of f| 00000320 72 65 65 20 73 70 61 63 65 3a 0a 38 2e 38 35 d7 |ree space:.8.85.| 00000330 31 30 5e 2d 31 32 20 43 b2 2f 4e 6d b2 0a 43 3d |10^-12 C./Nm..C=| 00000340 65 30 65 72 41 2f 64 0a 46 6f 72 20 61 20 70 61 |e0erA/d.For a pa| 00000350 72 61 6c 6c 65 6c 20 70 6c 61 74 65 20 63 61 70 |rallel plate cap| 00000360 61 63 69 74 6f 72 3a 0a 43 3d 63 61 70 61 63 69 |acitor:.C=capaci| 00000370 74 61 6e 63 65 20 28 46 29 0a 65 30 3d 70 65 72 |tance (F).e0=per| 00000380 6d 69 74 74 69 76 69 74 79 20 6f 66 20 66 72 65 |mittivity of fre| 00000390 65 20 73 70 61 63 65 0a 65 72 3d 72 65 6c 61 74 |e space.er=relat| 000003a0 69 76 65 20 70 65 72 6d 69 74 74 69 76 69 74 79 |ive permittivity| 000003b0 0a 41 3d 70 6c 61 74 65 20 61 72 65 61 2c 20 64 |.A=plate area, d| 000003c0 3d 64 69 73 74 61 6e 63 65 20 62 65 74 77 65 65 |=distance betwee| 000003d0 6e 20 70 6c 61 74 65 73 0a 46 3d 6b 51 71 2f 72 |n plates.F=kQq/r| 000003e0 b2 0a 57 68 65 72 65 3a 0a 46 3d 65 6c 65 63 74 |..Where:.F=elect| 000003f0 72 6c 20 66 6f 72 63 65 20 62 65 74 77 65 65 6e |rl force between| 00000400 20 32 20 63 68 61 72 67 65 64 20 6f 62 6a 65 63 | 2 charged objec| 00000410 74 73 0a 6b 3d 66 6f 72 63 65 20 63 6f 6e 73 74 |ts.k=force const| 00000420 61 6e 74 3d 38 2e 39 38 d7 31 30 5e 39 20 4e 6d |ant=8.98.10^9 Nm| 00000430 b2 2f 43 b2 0a 51 20 61 6e 64 20 71 20 61 72 65 |./C..Q and q are| 00000440 20 74 68 65 20 74 77 6f 20 63 68 61 72 67 65 73 | the two charges| 00000450 0a 72 3d 74 68 65 20 64 69 73 74 61 6e 63 65 20 |.r=the distance | 00000460 62 65 74 77 65 65 6e 20 74 68 65 20 74 77 6f 20 |between the two | 00000470 63 68 61 72 67 65 73 0a 45 3d 6b 51 2f 72 b2 0a |charges.E=kQ/r..| 00000480 57 68 65 72 65 3a 0a 45 3d 65 6c 65 63 74 72 69 |Where:.E=electri| 00000490 63 61 6c 20 66 69 65 6c 64 20 73 74 72 65 6e 67 |cal field streng| 000004a0 74 68 0a 6b 3d 66 6f 72 63 65 20 63 6f 6e 73 74 |th.k=force const| 000004b0 61 6e 74 3d 38 2e 39 38 d7 31 30 5e 39 20 4e 6d |ant=8.98.10^9 Nm| 000004c0 b2 2f 43 b2 0a 51 3d 63 68 61 72 67 65 20 6f 6e |./C..Q=charge on| 000004d0 20 6f 62 6a 65 63 74 0a 72 3d 64 69 73 74 61 6e | object.r=distan| 000004e0 63 65 20 74 6f 20 6f 62 6a 65 63 74 0a 56 3d 6b |ce to object.V=k| 000004f0 51 2f 72 0a 57 68 65 72 65 3a 0a 56 3d 65 6c 65 |Q/r.Where:.V=ele| 00000500 63 74 72 69 63 20 70 6f 74 65 6e 74 69 61 6c 0a |ctric potential.| 00000510 6b 3d 66 6f 72 63 65 20 63 6f 6e 73 74 61 6e 74 |k=force constant| 00000520 3d 38 2e 39 38 d7 31 30 5e 39 20 4e 6d b2 2f 43 |=8.98.10^9 Nm./C| 00000530 b2 0a 51 3d 63 68 61 72 67 65 20 6f 6e 20 6f 62 |..Q=charge on ob| 00000540 6a 65 63 74 0a 72 3d 64 69 73 74 61 6e 63 65 20 |ject.r=distance | 00000550 74 6f 20 6f 62 6a 65 63 74 0a 67 3d 46 2f 6d 0a |to object.g=F/m.| 00000560 57 68 65 72 65 3a 0a 67 3d 67 72 61 76 69 74 61 |Where:.g=gravita| 00000570 74 69 6f 6e 61 6c 20 66 69 65 6c 64 20 73 74 72 |tional field str| 00000580 65 6e 67 74 68 20 28 4e 2f 6b 67 29 0a 46 3d 66 |ength (N/kg).F=f| 00000590 6f 72 63 65 20 6f 6e 20 6f 62 6a 65 63 74 20 28 |orce on object (| 000005a0 4e 29 0a 6d 3d 6d 61 73 73 20 6f 66 20 6f 62 6a |N).m=mass of obj| 000005b0 65 63 74 20 28 6b 67 29 0a 0a 46 3d 2d 47 4d 6d |ect (kg)..F=-GMm| 000005c0 2f 72 b2 0a 57 68 65 72 65 3a 0a 46 3d 67 72 61 |/r..Where:.F=gra| 000005d0 76 69 74 61 74 69 6f 6e 61 6c 20 66 6f 72 63 65 |vitational force| 000005e0 20 62 65 74 77 65 65 6e 20 74 77 6f 20 6f 62 6a | between two obj| 000005f0 65 63 74 73 0a 47 3d 67 72 61 76 20 66 6f 72 63 |ects.G=grav forc| 00000600 65 20 63 6f 6e 73 74 61 6e 74 3d 36 2e 36 37 d7 |e constant=6.67.| 00000610 31 30 5e 2d 31 31 20 4e 6d b2 2f 6b 67 b2 0a 4d |10^-11 Nm./kg..M| 00000620 20 61 6e 64 20 6d 20 61 72 65 20 74 68 65 20 74 | and m are the t| 00000630 77 6f 20 6d 61 73 73 65 73 0a 72 3d 64 69 73 74 |wo masses.r=dist| 00000640 61 6e 63 65 20 62 65 74 77 65 65 6e 20 74 68 65 |ance between the| 00000650 20 74 77 6f 20 6f 62 6a 65 63 74 73 0a 67 3d 2d | two objects.g=-| 00000660 47 4d 2f 72 b2 0a 57 68 65 72 65 3a 0a 67 3d 67 |GM/r..Where:.g=g| 00000670 72 61 76 69 74 61 74 69 6f 6e 61 6c 20 66 69 65 |ravitational fie| 00000680 6c 64 20 73 74 72 65 6e 67 74 68 20 28 4e 2f 6b |ld strength (N/k| 00000690 67 29 0a 47 3d 67 72 61 76 20 66 6f 72 63 65 20 |g).G=grav force | 000006a0 63 6f 6e 73 74 61 6e 74 3d 36 2e 36 37 d7 31 30 |constant=6.67.10| 000006b0 5e 2d 31 31 20 4e 6d b2 2f 6b 67 b2 0a 4d 3d 6d |^-11 Nm./kg..M=m| 000006c0 61 73 73 20 6f 66 20 6f 62 6a 65 63 74 0a 72 3d |ass of object.r=| 000006d0 64 69 73 74 61 6e 63 65 20 74 6f 20 6f 62 6a 65 |distance to obje| 000006e0 63 74 0a 56 3d 2d 47 4d 2f 72 0a 57 68 65 72 65 |ct.V=-GM/r.Where| 000006f0 3a 0a 56 3d 67 72 61 76 69 74 61 74 69 6f 6e 61 |:.V=gravitationa| 00000700 6c 20 70 6f 74 65 6e 74 69 61 6c 0a 47 3d 67 72 |l potential.G=gr| 00000710 61 76 20 66 6f 72 63 65 20 63 6f 6e 73 74 61 6e |av force constan| 00000720 74 3d 36 2e 36 37 d7 31 30 5e 2d 31 31 20 4e 6d |t=6.67.10^-11 Nm| 00000730 b2 2f 6b 67 b2 0a 4d 3d 6d 61 73 73 20 6f 66 20 |./kg..M=mass of | 00000740 6f 62 6a 65 63 74 0a 72 3d 64 69 73 74 61 6e 63 |object.r=distanc| 00000750 65 20 74 6f 20 6f 62 6a 65 63 74 0a 56 3d 67 68 |e to object.V=gh| 00000760 0a 57 68 65 72 65 3a 0a 56 3d 67 72 61 76 69 74 |.Where:.V=gravit| 00000770 61 74 69 6f 6e 61 6c 20 70 6f 74 65 6e 74 69 61 |ational potentia| 00000780 6c 20 69 6e 20 61 20 75 6e 69 66 6f 72 6d 0a 66 |l in a uniform.f| 00000790 69 65 6c 64 0a 67 3d 67 72 61 76 69 74 61 74 69 |ield.g=gravitati| 000007a0 6f 6e 61 6c 20 66 69 65 6c 64 20 73 74 72 65 6e |onal field stren| 000007b0 67 74 68 0a 68 3d 68 65 69 67 68 74 0a 0a 0a 0a |gth.h=height....| 000007c0 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a |................| * 00000800 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a 0a |...........| 0000080b
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