What is a relay?
A. A device that stores electrical energy
B. A device that regulates electrical energy
C. A device that amplifies or switches electrical signals
D. A device that controls the flow of electrical current in a circuit
Answer:D
What is a relay?
A. A device that stores electrical energy B. A device that regulates electrical energy C. A device that amplifies or switches electrical signals D. A device that controls the flow of electrical current in a circuit