ACTIVE AND PASSIVE COMPONENTS - Practice Mode
1) What is the main problem caused for severe pitting in relays?
Correct Answer: Excessive contact current
2) What is the effect on the transformer operated below the rated voltage?
Correct Answer: Delivers reduced secondary voltage
4) What is the reason for the use of contactors in control circuits?
Correct Answer: Supply power to loads
5) Why the transformer core is made as thin laminations?
Correct Answer: To minimize eddy current losses