electroscope
🇺🇸
/ɪ'lektrəˌskoʊp/
🇬🇧
/ɪ'lektrəskəʊp/
noun
B2
A device that shows if something has an electric charge by using two metal pieces that move apart.
The scientist checked the charged rod with an electroscope to see how strong the charge was.
科學家用驗電器檢查帶電棒，以了解電荷的強度。
translation
驗電器
詞形變化
Plural
electroscopes