engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Electrician and Wireman Electrical Networks Alternating Current
When two watt meters are used to measure power of a 3‑ ϕ balanced circuit and one wattmeter reads negative, it means the angle of lag is:
1
0°
2
30°
3
45°
4
Above 60°