A Problem with Many Clamp-On Ammeters Is That ____

question 4

Multiple Choice

A problem with many clamp-on ammeters is that ____.

• A) changing the turns ratio is limited to wrapping two turns of wire around the jaw of the ammeter
• B) their mid-range scale values are inaccurate
• C) they can have different range settings by changing the turns ratio of the secondary of the transformer
• D) their lowest scale value is too high to accurately measure low-current values