engineering recuitment HPCL Engineer Mock Test 2024 Electromagnetic Theory Magnetostatics

For magnetic circuits, the relationship which is similar to application of Ohm’s Law is, (where ϕ is flux, S is reluctance)

1
ϕ = S/mmf
2
mmf = ϕ/S
3
ϕ = mmf/S
4
None of the above
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