railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Electrical and Electronics Measurements Extension Ranges of Basic Meters Basic DC Ammeter
The shunt resistance needed to extend the range of an ammeter from 2.5 A to 25 A if the ammeter resistance is 0.09 Ω is:
1
0.01 Ω
2
0.18 Ω
3
0.04 Ω
4
0.09 Ω