1. In class we talked about diodes, thyristors, and transistors are the most common semi- conductors in electronics. Give a short description of how they work and what makes them unique (2). 2. Sketch the ideal and realistic i-v characteristic of a diode. Describe the important characteristic of non-ideal diodes (2). 3. In the US, the voltage of power outlets in our houses is 120V. What common power electronic can be used to convert this to DC. Assuming the DC voltage we get out is higher than 5V, describe the principle of power electronics that would lower the voltage to 5V so as to supply a light (1)