What is a clear definition of total magnetic intensity?

What is the definition of intensity?

• Answer:

  Intensity : 1. the quality or condition of being intense. 2. great energy, strength, concentration, vehemence, etc., as of activity, thought, or feeling: He went at the job with great intensity. 3. a high or extreme degree, as of cold or heat. 4. the degree or extent to which something is intense. 5. a high degree of emotional excitement; depth of feeling: The poem lacked intensity and left me unmoved. 6. the strength or sharpness of a color due esp. to its degree of freedom from admixture with its complementary color. 7. Physics. magnitude, as of energy or a force per unit of area, volume, time, etc. 8. Speech. a. the correlate of physical energy and the degree of loudness of a speech sound. b. the relative carrying power of vocal utterance.