Question
Download Solution PDFAn ammeter of range 1 A shows a change in reading of 1 mA for every mA change in input current and does not respond to smaller current change at its input. Its resolution when referred to full scale is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFDetailed Solution:
The resolution is calculated as the ratio of the smallest measurable change in current to the full-scale current range of the ammeter. This can be mathematically expressed as:
Resolution = (Smallest detectable change in current) ÷ (Full-scale current range)
From the problem:
- The smallest detectable change in current = 1 mA
- The full-scale current range = 1 A = 1000 mA
Substituting the values into the formula:
Resolution = 1 mA ÷ 1000 mA = 0.001 = 0.1%
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