Here are four more questions, continuing our series of typical questions that an electrical engineering candidate might encounter. It is fair to note that my experience and candidates were all in the area of digital/analog/microcomputer design and definitely not Power Engineers.
The question numbers are continued from the previous blog posts.
7) We can have resistors with resistance (DC) from 0 ohms to millions of ohms. Yet when we build a Printed Circuit Board (PCB) we typically only see trace impedances (AC) ranging from maybe 10 to 200 ohms.
8) In general terms, what is the advantage of a twisted pair of copper conductors as a transmission line?
9) Let’s assume you have something like a processor or system-on-a-chip. We will call that IC1 and let’s suppose that the datasheet says we need 3 bypass capacitors on a particular power supply rail: a 47pF ceramic capacitor, a 100uF aluminum electrolytic capacitor, and a 0.1uF multilayer ceramic capacitor.
10) The circuit below is typically called an emitter-follower circuit.
There you go. Ten questions that might seem easy or might seem difficult.
Do you have a favorite interview question that somebody has asked you?
Comments and criticisms are always welcome.