Which one of the following phrasers best describes flux density?

1.	Which one of the following phrasers best describes flux density?
A.	The concentration of lines of magnetic force
B.	The rate of change of the number of lines of magnetic force
C.	The opposition to a build-up of magnetic fields
D.	The force that maintains lines of force
E.	None of the above
Answer» B. The rate of change of the number of lines of magnetic force

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Which one of the following phrasers best describes flux density?

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