engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Electrician and Wireman Power Systems Relays and Voltage Regulators
The relay coil is connected to an A.C. voltage of 50 Hz if the frequency of the applied voltage raises to 60 Hz. Which one of the following changes will occur?
1
The active resistance R increases
2
The reactance XL decreases
3
The reactance XL increases
4
The quality of the coil decreases