How many junctions are in a transistor and how does it “turn on”. What would happen if there were zero resistance (Rc=0) in the collector of a transistor circuit?

Question 4. Design a limiter circuit using only diodes and 10 K resistor to provide an output signal limited to +1.4 V.

Draw the energy band diagram of a p-n-p* bipolar junction transistor. Show all the relevant energies - conduction and valence band edges, Fermi energies, Intrinsic Fermi energy and built-in potentials. Identify which region is heavily doped. Draw very carefully and in a very tidy manner. No free hand diagrams