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What is the main reason for the limitation of depth below 6mm in Eddy current inspection (ECI)?

What is the main reason for the limitation of depth below 6mm in Eddy current inspection (ECI)? Correct Answer Skin effect

Eddy current causes skin effect. It restricts to a depth below 6mm. Skin effect is the reason for the limitation of depth below 6mm in ECI.

Related Questions

Eddy current inspection (ECI) is generally restricted to a depth below ___________
Assertion (A): Where any special or local law prescribes for any suit appeal or application a period of limitation different from period prescribed by the Schedule, the provisions of Section 3 of Limitation Act, 1963 shall apply as if such period were the period prescribed by the schedule.
Reason (R): Where a Special Law prescribes a period of limitation for filing appeal but there is no provision therefore under Limitation Act, 1963, the period of limitation provided under the Special Law must be treated to be different from that under the Limitation Act.
What principle defines eddy current inspection (ECI)?
The total resistance of the coil in Eddy current inspection (ECI) is known as __________
Consider the below statements. (i) Inspection is the process of measuring the quality of a product or service in terms of established standards. (ii) Inspection is the art of comparing materials, products or performances with established standards. (iii) Inspection is the art of applying tests, preferably by the aid of measuring appliances to observe whether a given item of product is with n the specified limits of variability. (iv) Inspection is not a tool for controlling the quality of the product. Which of the above statements are correct?
An assertion and a reason are given below. Assertion: The phenomenon of nuclear fission generates great energy. Reason: The process in which a nucleus is broken into two parts is called nuclear fission. Choose the answer. A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion. B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. C. Both Assertion and Reason are false. D. Assertion is true but Reason is false.
From the following data calculate the speed of governor in rpm. Dimensions of spring = 6mm wide, 0.12 mm thick and length = 48 mm mass attached to each leaf at centre = 25g Distance between spindle axis and C.O.M when the governor is at rest = 8mm Sleeve lift = 0.6mm E = 200 GN/mm2
From the data given: Dimensions of spring = 6mm wide, 0.12 mm thick and length = 48 mm mass attached to each leaf at centre = 25g Distance between spindle axis and C.O.M when the governor is at rest = 8mm Sleeve lift = 0.6mm E= 200 GN/mm2 Find the speed of the turntable in rpm if ratio of the governor speed to the turntable speed is 10.
In an eddy current transducer output depends on the variation in the eddy current.
2 KVA, 230 V, 50 Hz single phase transformer has an eddy current loss of 40 watts. The eddy current loss when the transformer is excited by a dc source of same voltage will be ___________