railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Basic Characteristics of an Instrument
A current of 100 A was measured three times by an ammeter and the values were indicated as 100.3 A, 100.5 A and 100.4 A. What is the precision of the ammeter ?
1
± 0.4%
2
± 0.2%
3
± 0.1%
4
± 0.3%