Electronics bingo

Exercise and reference answers

Clues and terms

1. Clue

   Polarity that widens the depletion layer so only leakage current flows

   Item

   Reverse bias

2. Clue

   Polarity that narrows the depletion layer and lets the diode conduct

   Item

   Forward bias

3. Clue

   Carrier-free region either side of a p-n junction

   Item

   Depletion

4. Clue

   Op-amp wired for unity gain, used as a buffer between stages

   Item

   Follower

5. Clue

   Op-amp configuration whose gain is one plus Rf over R1

   Item

   Non-inverting

6. Clue

   Op-amp configuration that reverses the phase of its input

   Item

   Inverting

7. Clue

   Material whose conductivity rises as temperature rises

   Item

   Semiconductor

8. Clue

   Positive vacancy left behind when a covalent bond releases an electron

   Item

   Hole

9. Clue

   Adding impurity atoms to fix the majority carrier type

   Item

   Doping

Instructions

Read the call, then tap the term it describes. Three in a line wins.