Technician a Says the Phototransistor Uses the Application of Light

question 56

Multiple Choice

Technician A says the phototransistor uses the application of light to generate  carriers to supply the base leg current. Technician B says photoelectric sensors use light-sensitive elements to detect rotation. Who is correct?

• A) Technician A only
• B) Technician B only
• C) Both Technician A and B
• D) Neither Technician A nor B