railway DFCCIL Executive 2025 Mock Test Electrical and Electronics Measurements Extension Ranges of Basic Meters
What is the resistance to be added to convert a moving coil instrument having resistance 10 Ω, giving a full-scale deflection for a current of 50 mA, to measure 1A.
1
200 Ω, series
2
0.53 Ω, shunt
3
200 Ω, shunt
4
0.53 Ω, series