How is the magnetizing force of an eddy current test coil usually designated?

In eddy current testing, the magnetizing force of a test coil is designated by the letter H. This designation aligns with the conventions used in magnetism and electromagnetic theory, where H represents the magnetic field strength or magnetizing force.

The letter H quantifies the magnetizing effects produced by the current flowing through the coil, influencing the behavior of eddy currents induced in the conductive material being tested. Understanding this relationship is essential for interpreting eddy current signals and analyzing the resulting data effectively.

This designation is widely accepted in the field of electromagnetism, making it straightforward for professionals to communicate concepts related to magnetic fields and testing techniques. The other options do not align with the standard terminology applied in this context.