Which of the following graphs represent the variation of relative permeability µ r magnetic intensity (H) for a ferromagnetic material?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
as we know M dependent on H, initially value of 
is smaller, so value of 
increases with H but slowly but with further increases of H, value of 
also increases, i.e. 
increases speedily.
When material fully magnetized, M becomes constant, and then with the increase of 
decreases 
decreases.
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