【简答题】Co-operation (合作)is always needed when you make a project that the teacher gives you. First, discuss all you would like to do with your classmates. Choose one of the members to write down what you’re ...
【单选题】The circuit is shown in the figure, the value of the resistor RL is variable. The maximum power that the load RL can get should be equal to ________Ω. Choose A,B,C or D. We can use Thevenin theorem t...