Elektronik


Elektronik


Größe
Symbol
Formel
Si Einheit




Strom
I
I = ΔQ / Δt
1A = 1C / 1s
parallel

I0 = I1 + I2 + ... + In

seriell

I0 = I1 = I2 = ... = In





Spannung
U
U = ΔW / ΔQ
1V = 1J / 1C
parallel

U0 = U1 = U2 = ... = Un

seriell

U0 = U1 + U2 + ... + Un









Widerstand
R
R = ΔU / ΔI
1Ω = 1V / 1A
Leitungs -
Rl
Rl = ς * l / A

parallel

1 / R0 = 1 / R1 + 1 / R2 + ... + 1 / Rn

seriell

R0 = R1 + R2 + ... + Rn





Leistung
P
P = U * I
1W = 1V * 1A
parallel

P = P1 + P2 + ... + Pn

seriell

P = P1 + P2 + ... + Pn




Q : Coulomb ( C ) = - 1,602e - 19


Ohmsches Gesetz:
R =U / I für ΔI / ΔU = const


2 K.G.:
R1 / R2 = I2 / I1
(Parallelschaltung)

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