Can a proximity switch be used to detect non-metallic objects?
A. Yes, but only if the object is conductive
B. Yes, but only if the object is magnetic
C. No, proximity switches can only detect metal objects
D. Yes, but only if the object has a high dielectric constant
Answer:D
Can a proximity switch be used to detect non-metallic objects?
A. Yes, but only if the object is conductive B. Yes, but only if the object is magnetic C. No, proximity switches can only detect metal objects D. Yes, but only if the object has a high dielectric constant
Explanation: A proximity switch can be used to detect non-metallic objects if the object has a high dielectric constant. This is because the switch’s electromagnetic field can detect changes in the dielectric constant of the surrounding material.