railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical and Electronics Measurements Indicating Instruments MI Instruments
Which of the following types of instruments depends on the iron vane's attraction to the current-carrying coil to be measured for proper operation?
Which of the following types of instruments depends on the iron vane's attraction to the current-carrying coil to be measured for proper operation?
1
PMMC instrument
2
Moving-iron instrument
3
Moving-scale instrument
4
PMM instrument