| Karnaugh map | Introduction |
| | Making a Venn diagram look like a Karnaugh map |
| | Karnaugh maps, truth tables, and Boolean expressions |
| | Logic simplification with Karnaugh maps |
| | Larger 4-variable Karnaugh maps |
| | Larger 5 & 6-variable Karnaugh maps |
| Karnaugh, Maurice | Karnaugh maps, truth tables, and Boolean expressions |
| KCL | Kirchhoff's Current Law (KCL) |
| | Series R, L, and C |
| | Simple AC circuit calculations |
| | Current divider |
| Kelvin (unit) | Superconductivity |
| Kelvin clips | Kelvin (4-wire) resistance measurement |
| Kelvin Double bridge | Bridge circuits |
| Kelvin resistance measurement | Kelvin (4-wire) resistance measurement |
| Keyboard as signal generator | Musical keyboard as a signal generator |
| keyboard, piano | AC Waveforms |
| Kickback, inductive | Inductor commutating circuits |
| Kilo | Metric notation |
| Kirchhoff's Current Law | Kirchhoff's Current Law (KCL) |
| | Series R, L, and C |
| | Simple AC circuit calculations |
| | Introduction |
| | Current divider |
| Kirchhoff's Voltage Law | Kirchhoff's Voltage Law (KVL) |
| | Series R, L, and C |
| | Some examples with AC circuits |
| | Simple AC circuit calculations |
| | The common-collector amplifier |
| | Voltage divider |
| Klystron | Microwave tubes |
| Klystron tube | Waveguides |
| KVL | Kirchhoff's Voltage Law (KVL) |
| | Series R, L, and C |
| | Some examples with AC circuits |
| | Simple AC circuit calculations |
| | Voltage divider |
