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Formelsammlung: E-Technik

Formelsammlung: E-Technik. Ohmsche Gesetz: U = R * I I = U / R R = U / I Maschensatz: S U = 0 Knotenpunktsatz: S I = 0 R V = (m – 1) *R m m = U / U m R N = (R i * I M ) / I N q = I q / I L Elektrische Gleichwertigkeit: I 1 + I 2 + I 3 = 0 Reihenschaltung:

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Formelsammlung: E-Technik

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  1. Formelsammlung: E-Technik Ohmsche Gesetz: U = R * I I = U / R R = U / I Maschensatz: S U = 0 Knotenpunktsatz: S I = 0 RV = (m – 1) *Rm m = U / Um RN = (Ri * IM) / IN q = Iq / IL Elektrische Gleichwertigkeit: I1 + I2 + I3 = 0 Reihenschaltung: Rges = R1 + R2 … + Rn I = konst Uges = U1 + U2 … + Un Uq = URI + URL U1 / R1 = U2 / R2 Pges = P1 + P2 … +Pn P1 / P2 = R1 / R2 Parallelschaltung: U = konst Iges = I1 + I2 … +In Gges = G1 + G2 … + Gn Rges = (R1 * R2) / (R1 + R2) Rges = 1/R1 + 1/R2 … + 1/Rn Pges = P1 + P2 … + Pn P1 / P2 = R2 / R1 = G1 / G2 R1 / R2 = IR2 / IR1 Dreieck- / Sternschaltung: RA = (R1 * R2) / (R1 + R2 +R3) 1A-Verfahren Ug / Ug‘ = U1 / U1‘

  2. Q = N * e Q = I * t Q = e * n * A * l e = 1,60218 * 10^(-19) J = I / q I = U / R I = Q / t U = W / Q U = R * I U = P / I Umax = Ö(P * R) E = F / Q F = m * a j = W / Q D j = j2 - j1 D j = (W2 / Q) – (W1 / Q) R = U/I R = 1/G RL20 = l / (g * A) R = (z * l) / A G = I/U G = 1/R v = l / t S U = 0 g =J / E g = l / (A * R) z = 1 / g z = (A * R) / l P = U * I P = I² * R P = U² / R W = U * I * t W = P * t W = U * Q Wpot = Q * E * s Quellspannung: UQ = Wzu / Q Spannungsfall: U = Wab / Q Warmwiderstand: Rw = R20 * (1 + a * DJ) Klemmenspannung: U = UQ – I * Ri U = I * Ra I im Grundstromkreis: I = UQ / (Ri + Ra)

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