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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