Mind and rivers can be both broad. It is a known fact that the broader the river, the shallower it is. Therefore it must be true that the broader the mind, the shallower it is.
【简答题】电路如图 1 所示,已知 U 2 =10V , R L =100 Ω, C=220 μ F ,求( 1 )电路正常工作时的输出电压 U O ;( 2 )若测得输出电压 U O =9V ,则电路发生了什么故障?( 3 )若测得输出电压 U O =4.5V ,则电路发生了什么故障?(设二极管为理想二极管)