_______ The Thais like to touch babies or small children, especially they like others to pat their children’s head. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【简答题】指出题图属于什么电路,并计算R f 的阻值。 (R 1 =5.1KΩ , u i =0.2V , u o =-3V) ( 图参阅书 P165 图 4-10 ) (2)u i =10 sin314tV, A uf =-10 ,画出u o 的波形? (3)R 1 =5K Ω, A uf =-10 ,求R f ?