20. Recorrendo ao Teorema de Th1venin2

Apuntes

20. Recorrendo ao Teorema de Thévenin, determine o valor da potência em jogo na fonte de 2A. Essa fonte recebe energia do circuito ou fornece-lhe energia? ```svg <svg width="200" height="200" xmlns="http://www.w3.org/2000/svg"> <circle cx="150" cy="30" r="10" stroke="black" stroke-width="2" fill="none"/> <text x="145" y="35" font-family="Arial" font-size="12">3A</text> <line x1="150" y1="40" x2="150" y2="80" stroke="black" stroke-width="2"/> <line x1="150" y1="80" x2="100" y2="80" stroke="black" stroke-width="2"/> <line x1="100" y1="80" x2="100" y2="120" stroke="black" stroke-width="2"/> <line x1="100" y1="120" x2="150" y2="120" stroke="black" stroke-width="2"/> <line x1="150" y1="120" x2="150" y2="160" stroke="black" stroke-width="2"/> <line x1="150" y1="160" x2="50" y2="160" stroke="black" stroke-width="2"/> <line x1="50" y1="160" x2="50" y2="120" stroke="black" stroke-width="2"/> <line x1="50" y1="120" x2="100" y2="120" stroke="black" stroke-width="2"/> <circle cx="50" cy="120" r="10" stroke="black" stroke-width="2" fill="none"/> <text x="45" y="125" font-family="Arial" font-size="12">2A</text> <line x1="50" y1="110" x2="50" y2="80" stroke="bla...