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Which outcome from rapidly switching current in inductive proximity sensor's excitation coil?

A)Eddy current generation in target object
B)Thermoelectric voltage reduction in sensor
C)Triboelectric charge accumulation in housing
D)Piezoelectric resonance within the core

💡 Explanation

When current rapidly switches, a changing magnetic field is generated because of electromagnetic induction, inducing eddy currents within a metallic target object placed nearby. Therefore, eddy current generation results, rather than thermoelectric, triboelectric, or piezoelectric effects which involve different material properties and mechanisms.

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