engineering recuitment RVUNL JEn (RSEB) Mock Tests 2025 Electrical and Electronics Measurements Extension Ranges of Basic Meters Basic DC Ammeter
A 30 V moving-iron voltmeter has a resistance of 300 Ω and inductive reactance of 400 Ω. Assume that the voltmeter reads correctly on DC, what will be the percentage error when the instrument is placed on 30 V AC supply at 100 Hz?
1
0.4%
2
400%
3
4%
4
40%
5
60%