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Electrical Engineering · Q68

Magnetism And Electromagnetism

Engineering and GATE · Electrical Engineering · question 68

Q68

Air gap has_______eluctance as compared to iron or steel path

A.
little
B.
lower
C.
higher
Answer
D.
zero

Answer: Option C

Solution

Answer: Option C
Solution:
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).