| term | Description |
|---|---|
| closed circuit | |
| cross-country | |
| electric circuit | |
| integrated circuit | |
| microcircuit | |
| open-circuit | |
| parallel circuit | |
| professional circuit | |
| running circuit | |
| series circuit | |
| short circuit | |
| sports circuit | As in a series of events over the world |
| stand-up comedy | |
| tennis circuit | |
| ampere | |
| battery | |
| capacitor | |
| cathode | |
| choke coil | |
| circuit breaker | |
| circuit board | |
| current | |
| fuse | |
| fuse box | |
| negative pole | |
| overload | |
| relay | |
| switch | |
| voltage |