10 gauge wire corresponds with what size fuse or breaker?

Depends on whether you are using Copper or Aluminum, the type of insulation and the temperature of the terminals/

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10 gauge wire corrosponds with what size fuse or breaker
This question cannot be answered as asked. There is no one correct answer.

How are you using the wire? MNC, single wire in conduit? Where? Attic, wall, below ground?

... another test question?.

I agree, but if it is a test question t is way to vague.

I guess they were looking for the 30 Amp restriction in the NEC for general branch circuits but the author of the question asked a poorly formatted question for an examination, at least in my opinion.