noun
primary coil; primary winding
Technical term in electrical engineering; the coil in a transformer that receives the input voltage.
一次コイルに交流電圧を加えると、二次コイルに誘導起電力が生じる。
When an AC voltage is applied to the primary coil, an induced electromotive force appears in the secondary coil.
Standard kanji spelling for 'primary coil'.
Variant using numeral 1; common in technical contexts.
The secondary coil, which outputs the transformed voltage.
Compound of 一次 (primary) + コイル (coil), a straightforward technical term.