engineering recuitment UPCL AE (E&M) 2021 Mock Test Electrical and Electronics Measurements Error Analysis
A voltmeter reads 40 V on its 100 V range and an ammeter reads 75 mA on its 150 mA range in a circuit. Both the instruments are guaranteed ± 2% accuracy on FSD. The limiting error on the measured power is
1
4%
2
5%
3
9%
4
12%