Lista 1 - Eletricidade Aplicada 2021-2

C) 3Ω 5Ω E0 1Ω ↓3V I0 7Ω ↑6V D) I0 2Ω 4Ω →7V E0 6Ω ↑5V E) 1Ω 3Ω ←1V ↑I0 1Ω →5V 5Ω E0 6Ω F) ↑E0 5Ω →3V 1Ω 6Ω 2Ω I0 7Ω G) ↑5V ↓3V I0 ←1Ω 3Ω 7Ω E0 ←1Ω Respostas 1.1) A) E0 = 4/3 V, I0 = 1/3 A B) E0 = -5/11 V, I0 = -5/11 A C) E0 = 28/23 V, I0 = -4/23 A D) E0 = -1/3 V, I0 = 1/7 A E) E0 = -6/31 V, I0 = -2/31 A F) E0 = -5/19 V, I0 = -1/19 A G) E0 = -16/49 V, I0 = 6/49 A H) E0 = -1/2 V, I0 = 1/2 A I) E0 = 0 V, I0 = -2/11 A J) E0 = 2/15 V, I0 = 1/3 mA 1.2) A) E0 = -3/2 V, I0 = 1/2 A B) E0 = 3/4 V, I0 = -1/4 mA C) E0 = -8/7 V, I0 = -3/7 A D) E0 = 1/2 V, I0 = 3/2 A E) E0 = -27/28 V, I0 = 3/14 A F) E0 = -120/79 V, I0 = 24/79 A G) E0 = 2/3 mV, I0 = -7/3 mA H) E0 = 1V, I0 = -1/2 A I) E0 = -204/115 V, I0 = -36/115 A J) E0 = 4 mV, I0 = -2 mA 1.3) A) E0 = 20/11 V, I0 = 3/11 A B) E0 = 10/11 V, I0 = -4/11 A C) E0 = 3 V, I0 = 1/2 A D) E0 = 6/13 V, I0 = 10/13 A D) I0 E) I0 ξ0 F) I0 ξ0 G) 1Ω 1Ω I0 3Ω 2A 2Ω ε0 1A H) 1Ω I0 3Ω ε0 1V 1A ↑2V 5Ω 2Ω I) 1Ω 4Ω Iε0 3Ω 1V 2V 1Ω I04 2Ω J) 3Ω 4Ω I0 1Ω ε0 ↓1V ↑2V Obs: Os teoremas de Thevenin, Norton e das equações nodais podem ser exercitados através dos problemas 1.1; 1.2 e 1.5. 1.4) Teorema da máxima transferência de potência R1 R3 R4 R5 R2 A PL = ?, RL = ? A) V = 1V, A = 1A, R1 = 1Ω, R2 = 2Ω, R3 = 5Ω, R4 = 1Ω, R5 = RL, PL = ? B) V = -2V, A = ½ A, R1= 3Ω, R2 = 5Ω, R3 = RL, R4 = 1Ω, R5 = 2Ω, PL = ? C) V = 5V, A = -1A, R1 = 1Ω, R2 = RL, R3 = 1Ω, R4 = 2Ω, R5 = 1Ω, PL = ? D) V = 100V, A = 50mA, R1 = 1kΩ, R2 = 2kΩ, R3 = 4kΩ, R4 = RL, R5 = 3kΩ, PL = ? E) V = -30V, A = -200mA, R1 = 7Ω, R2 = 6Ω, R3 = 8Ω, R4 = 1Ω, R5 = RL, PL = ? 1.5) Equações de laço A) 1Ω 2Ω I0 ε0 4Ω ↓1V 5Ω B) 2Ω I0 3Ω ε0 5Ω 6Ω 1Ω E) ε₀ = 27/17 V, I₀ = - 5/34 A F) ε₀ = - 2V, I₀ = 1 A G) ε₀ = 22/21 V, I₀ = - 4/21 A H) ε₀ = 3/2 V, I₀ = - 1/2 A I) ε₀ = 36/61 V, I₀ = 8/61 A J) ε₀ = 3 V, I₀ = - 4/19 A 1.4) A) Rₗ = 20/3 Ω, Pₗ = 361/240 w B) Rₗ = 39/8 Ω, Pₗ = 121/312 w C) Rₗ = 4/5 Ω, Pₗ = 289/80 w D) Rₗ = 23/31Ω, Pₗ = 67500/23mw = 2,935 w E) Rₗ = 159/13 Ω, Pₗ = 43764.64/8268 w = 5,293 w 1.5) A) ε₀ = - 6/7 V, I₀ = - 13/14 A B) ε₀ = - 35/26 V, I₀ = - 2/13 A C) ε₀ = - 9/4V, I₀ = - 6/7 A D) ε₀ = - 5 V, I₀ = 1 A E) ε₀ = 612/182 V, I₀ = - 267/182 A F) ε₀ = 1/2 V, I₀ = 63/238 A G) ε₀ = - 2/9 V, I₀ = - 4/9 A