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I read some explanations about the use of 'such' as a determiner, but I still could not figure this out. If, in scientific/formal writing, I want to use 'such' instead of 'this' to specify a previously mentioned noun, do I need the article a? E.g.:

By adding a correct constant voltage on one of the plates, the AC goes to zero. In such configuration, the DC-voltage is the same as the original potential difference between the materials.

Which one would be correct: such a configuration or such configuration?

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  • Such a configuration. Jun 3 '20 at 16:54
  • "Such configuration" could be used when the act of "configuration" it the topic, but not in the above example.
    – Hot Licks
    Jun 3 '20 at 17:04

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