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________ detects metals but along with it can also detect resins, liquids.

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________ detects metals but along with it can also detect resins, liquids.

(a) Inductive proximity

(b) Capacitive Proximity

(c) Magnetic Proximity

(d) Parallel Proximity

I had been asked this question during an interview for a job.

Question is from Proximity Sensor in division Sensors of IOT

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The correct answer is (b) Capacitive Proximity

To elaborate: Capacitive Proximity can also detect metals but along with it can also detect resins, liquids, powders, etc. This sensor working can vary accordingly covering material, cable longness, noise sensitivity.

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