Physics · Electrical Measurements
How is the efficiency of an electrical measuring instrument calculated?
- 1Instrument efficiency = Measuring quantity at full scale Power taken by the instrument at full scale✓
- 2Instrument efficiency = Power taken by the instrument at full scale Measuring quantity at full scale
- 3Instrument efficiency = Power taken by the instrument at full scale Power taken at measured quantity
- 4Instrument efficiency = Power taken at measured quantity Power taken by the instrument at full scale
Correct answer
Instrument efficiency = Measuring quantity at full scale Power taken by the instrument at full scale
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