Eddy currents are not used for the measure of which of the following properties?(a) Electrical conductivity(b) Magnetic resistivity(c) Hardness(d) Grain sizeI have been asked this question during an interview for a job.My query is from Eddy Current Test in section Non Destructive Techniques of Casting-Forming-Welding II

Eddy currents are not used for the measure of which of the following p

1.	Eddy currents are not used for the measure of which of the following properties?(a) Electrical conductivity(b) Magnetic resistivity(c) Hardness(d) Grain sizeI have been asked this question during an interview for a job.My query is from Eddy Current Test in section Non Destructive Techniques of Casting-Forming-Welding II
Answer» Correct option is (b) Magnetic resistivity For explanation: The INSPECTION of structures DONE by eddy current method is based on the principle of electromagnetic induction. This method of DETECTING defects can be used for knowing the measure of ELECTRICAL conductivity, grain size, hardness and magnetic permeability.

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