Rozwiąż obwód na podanym rysunku: (załącznik) Dane: R1 = 2Ω R2 = 4Ω R3 = 12Ω U = 8V Szukane: Rz₁ Rz I I₁ I₂ I₃ U₁ U₂ U₃ P₁

R1 = 2Ω R2 = 4Ω R3 = 12Ω U = 8V Rz1 = R1 + R2 Rz1 = 2Ω + 4Ω = 6Ω Rz = 1/Rz1 + 1/R3 1/Rz = 1/6Ω + 1/12Ω = 2/12Ω + 1/12Ω = 3/12Ω Rz = 12/3Ω = 4Ω I = U/Rz I = 8V/ 4Ω I = 2A U12 = I * Rz1 U12 = 2A * 6Ω U12 = 12V I1 = U12/R1 I1 = 12V/2Ω I1 = 6A I2 = U12/R2 I2 = 12V/4Ω I2 = 3A U1 = I1 * R1 U1 = 6A * 2Ω U1 = 12V U2 = I2 * R2 U2 = 3A * 4Ω U2 = 12V Jak narazie wszystko sie zgadza :) U3 = I * R3 U3 = 2A * 12V U3 = 24V I3 = U3/R3 I3 = 24V/12V I3 = 2A P1 = I(kwadrat) * R P1 = I(kwad) * R1 P1 = 2A(kwad) * 2 P1 = 8W P = 2A(kwadr) * 4Ω P = 16W