| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| Gustav Kirchhoff showed that this travels at light speed, so a circuit connecting a motor to a switch will start the motor fast | electric current | $1,200 | DJ | PHYSICS | 2023-07-26 | #8923 | |
| If this is alternating, running it through a rectifier will turn it into direct | current | $200 | DJ | PHYSICS | 1989-12-11 | #1216 | |
| An ammeter is used to measure this | electric current (amperes) | $400 | J | PHYSICS | 1988-03-03 | #814 |