Snt level iii ch 4 et Study guides, Class notes & Summaries
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SNT Level III: Ch. 4 (ET) Questions and Answers with complete solution
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Eddy currents are circulating electrical currents induced in conductive materials by: - Answer-an 
alternating magnetic field 
The method used to generate eddy currents in a test specimen by means of a coil can most closely 
be compared with the action of a: - Answer-transformer 
Electromagnetic testing relies on the principle of: - Answer-electromagnetic induction 
When the electrical current in an eddy current coil reverses direction, the: - Answer-direction of the 
eddy currents in the test p...
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