What is the meaning of the symbol marked ‘x’ on the ammeter dial?

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Electronic Mechanic Practice Test: Single Range Meters — practice the complete quiz, review flashcards, or try a random question.


What is the meaning of the symbol marked ‘x’ on the ammeter dial?<br><img src='https://www.fatskills.com/images4/BS/electronic-mechanic-single-range-meters-4.GIF'>