Logic And Electrical Engineering – Practice Problems Set 1
逻辑和电子工程-练习题1
- The diagram below shows part of a control circuit. At first both input A and input B are low (0), and the lamp is OFF.
下图显示了控制电路的一部分。输入A和输入B均为低电平（0），指示灯灭。
- If input A becomes high (1), the lamp will turn ON. Explain why this is.
如果输入A变为高电平（1），指示灯亮。解释这是为什么。 - If input A returns to a low (0) state after being in a high (1) state, the lamp will remain ON. Explain why this happens.
如果输入A在处于高（1）状态后返回低（0）状态，指示灯将保持亮。解释为什么会发生这种情况。 - What is a feedback loop?
什么是反馈电路？ - What effect does a negative feedback loop have on this control system?
负反馈电路对该控制系统有什么影响？
- The names of four electrical devices are given on the left. What each device does is given on the right. Draw a line to join each device with what it does.
左边是四个电气设备的名称，右边给是每个设备的功能。将每个设备与其对应功能连接起来。
- The following is a list of electrical components that may be used in electrical circuits以下是电路中
可能使用的电气部件列表：
- Allows current to flow in one direction only.
允许电流只向一个方向流动。 - Can store a small charge.
可以储存少量电荷。 - Can act as an electronic switch.
可以用作电子开关。 - Can be used to measure voltage.
可用于测量电压。 - Can act as a sound sensor .
可以用作声音传感器。
- The diagram following shows an input signal and an output signal. Which of the components listed in question 2 would result in this type of signal transformation?
下图显示了输入信号和输出信号。问题2中列出的哪些部件会导致这种类型的信号转换？
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