A B C D E F G H I J K L M N O P Q R S T UV WXYZ
B
conversions
b = w/m2
= wb/m2
= weber/m2
= Flux d of mag. induction or mag. field
= wave strength
= flux/unit area normal to direction of
flux
= # photons through surface/unit time/unit
area
= watts/cm2
= lumens/ft2
= field density
= Φ/A
= dΦ/dA
= mag. induction
= flux/unit area perp. to direction of
flux
= gauss (cgs)
= F/qv sinΦ
=
=
= (μ0/4π)(2I/a)
= 2I/a · 10-7
= 2I/a · 10-7 · sin α
= I/a (sin α1 + sin
α2) · 10-7
= ∫dB
= μ0I/4πa∫02πdα
= μ0I(2π)/4πa
= μ0I/2a
= μH
= μNI/l
= μ0NI/l (air)
= (v1 rotor ∙ poles)/(4.44 ∙ vstator ∙ #bars)
bm = max. flux density
= w/m2 (mks)
Bloodvol
= Bwght ∙ liter/kg
Bcell
vol. = Hct ∙ Bvol.
B.E.
e- = hc/λ - K.E. e-
= J
= eV
bale = 10 reams (paper)
Bar.Hg
= 760 mm
barn = 10-28 m2
bars = 14.5 psig
#bars
= (v1 rotor ∙ poles)/(4.44 ∙ vstator ∙ b)
baros = weight
barrel = 31.5 gal
= bbl
= 1/2 hogshead
bars = 14.5 psig
0Baume light scale = 140/[spec. grav. ∙
(600F/600F) ] - 130
0Baume heavy scale =
145 - (145/[sp. grav. ∙ (600F/600F)])
bbl = barrel
beide (G.) = two
bes = 8 oz
= 8 uncia
bes (L.) = 8
bilibra = 2 lb
= bilibris
bilibris = bilibra
billion = disekatommyrion (Gr.)
= milliard (F.)
= milliarde (G.)
Binding
Energy = Δmass ∙ 931 amu
bis (F.) = twice
bis (L.) = twice
Blood
cell vol. ≈ Hct ∙ Blood vol.
Blood
flow = MAP/RT Periph
= CO
Blood
vol. ≈ Blood wght ∙ (L/kg)
Blood
vol. total ≈ 2.22 Hct
Blood
wght ≈ 8% body wght
B.O.
= Bond Order
= 1/2 (#B.e- - #A.B. e-)
body wght ≈ 12.5 blood wght
box = kiste (Gr.)
British
Thermal Units = BTU
10Brix
(Balling) Scale = 1% sugar by wght @ 200C
BTU
= British Thermal Units
= amount of heat required to raise temp. of 1 lb of H2O 1 0F
= 1054 J
= 252 g ∙ cal.
= 2.93 ∙ 10-4 kwhr
bushel = 4 pecks
= Bu
= 35.24 Liters