Physics · Sensors and Transducers
How does a proximity switch primarily detect the presence of a nearby object without physical contact?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1By sensing changes in an electromagnetic or electrostatic field✓
- 2By responding to changes in ambient temperature
- 3By mechanical coupling to a rotating shaft
- 4By measuring the pressure of liquid or gas vapor
Correct answer
By sensing changes in an electromagnetic or electrostatic field
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