Electronic Devices & Circuits — Solved Problems

These twenty-two problem sets are the companion to the thirty-chapter lecture course, grouped under the same six parts so that each set can be attempted as soon as its chapters have been read. Nothing here is an answer key. Every problem is solved in the open: the circuit is redrawn, the model being used is stated and justified, each line of algebra follows from the one above it, and the final figure is given to the precision the data actually supports.

The difficulty is deliberately mixed. Some problems check that a definition has been understood — a ripple factor, a stability factor, a slew-rate limit. Others are design problems with more than one defensible answer, where the working matters more than the number. A few are there because they are the ones students reliably get wrong: the rectifier whose PIV depends on the topology, the bias circuit that looks stable until β doubles, the difference amplifier whose CMRR is destroyed by one per-cent resistors.