engineering recuitment NHPC JE & THDC JE 2023 Mock Test Electrical and Electronics Measurements Extension Ranges of Basic Meters
The range of an ammeter is 0-50 mA with an internal resistance of 40 ohm. What is the value of the shunt resistance that should be added to the ammeter, in order to extend the range to 0-150 mA?
1
10 ohm
2
20 ohm
3
30 ohm
4
40 ohm