Air gap has_______eluctance as compared to iron or steel path
A. little
B. lower
C. higher
D. zero
Answer: Option C
Solution (By Examveda Team)
The air gap in a magnetic circuit has higher reluctance compared to the iron or steel path.Reluctance is the opposition to the flow of magnetic flux, similar to resistance in an electrical circuit.
Since air has a much lower magnetic permeability than iron or steel, the reluctance of an air gap is significantly higher.
In contrast, iron and steel have high permeability, allowing them to conduct magnetic flux easily with very low reluctance.
Hence, the correct answer is Higher (Option C).
This Question Belongs to Electrical Engineering >> Magnetism And Electromagnetism
Join The Discussion
Comments (3)
Related Questions on Magnetism and Electromagnetism
Which of the following is a vector quantity?
A. Relative permeability
B. Magnetic field intensity
C. Flux density
D. Magnetic potential
What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current?
A. 2,400 At
B. 240 At
C. 24 At
D. 2.4 At
Magnetism of a magnet can be destroyed by
A. heating
B. hammering
C. by inductive action of another magnet
D. by all above methods
Strength of an electromagnet can be increased by
A. increasing the cross-sectional area
B. increasing the number of turns
C. increasing current supply
D. all above methods
C is right answer
C is right answer
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...