Air gap has_______eluctance as compared to iron or steel path
A. little
B. lower
C. higher
D. zero
Answer: Option B
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Wrong. Right answer is option C- Higer.
Because Reluctance (S) is inversely proportional to relative permeability.
Relative permeability of air is 1
Relative permeability of iron is 6000 to 8000.
So, Reluctance of air gap is higer than iron or steel path...