ampere-turn
ampere-turn — noun
1. a unit used in electrical engineering to measure the magnetic force created when
a unit used in electrical engineering to measure the magnetic force created when a single loop of wire carries one ampere of current
In class, Rin calculated that one loop carrying one ampere makes one ampere-turn.
formula idea: one turn x one ampere
The repair guide says this relay needs fifty ampere-turns before the switch closes.
pattern: need + number + ampere-turns
Andrés noted 200 ampere-turns for the small lifting magnet.
Jessica doubled the coil turns to get more ampere-turns without raising the current.
Engineers choose the wire size after checking the door lock's required ampere-turns.
文法句型
[number] + ampere-turn(s)
need / produce / create + [number] + ampere-turn(s)
用法筆記
This unit is mostly used in technical writing about coils, relays, and electromagnets. It nearly always appears with a number, and the value rises if you increase either the current or the number of coil turns.