Вопрос № 933225 - Английский язык

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A rectifier is a device which allows an electric power to pass in one direction but not in the opposite direction. 1________. Four of the most common are described below:
Selenium rectifiers are made of an aluminium plate with a selenium coating. 2_______. Instrument rectifiers are normally of the cooper oxide type, which consists of a copper disc with a cuprous oxide coating. 3_______. They are suitable for all power rectification, but are particularly useful for the low to medium power range. Thermionic diodes are found in radio circuits. 4_______.
Варианты ответов
  • They consist of two electrodes in a vacuum
  • They are used for high power rectification
  • Semi-conductor diodes are made with germanium or silicon
  • There are various types of rectifier
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Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 16:22
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 16:22