engineering recuitment RVUNL Technician III Mock Test Series 2025 Electrical and Electronics Measurements Extension Ranges of Basic Meters Basic DC Ammeter
A 10A DC Ammeter has a resistance of 0.1 Ω is to be extended to 50 A, the required shunt wire is
1
Manganin wire of 20 m Ω
2
Constantan wire of 20 m Ω
3
Manganin wire of 25 m Ω
4
Constantan wire of 25 m Ω
5
Constantan wire of 50 m Ω