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When the area of cross section of the material increases, what happens to reluctance?

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When the area of cross section of the material increases, what happens to reluctance?

(a) Increases

(b) Decreases

(c) Remains the same

(d) Becomes zero

This question was addressed to me in an interview for internship.

The above asked question is from Reluctance topic in chapter Simple Magnetic Circuits of Basic Electrical Engineering

1 Answer

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Correct answer is (b) Decreases

The explanation is: Reluctance is inversely proportional to the area of cross section of the material hence as area increases, reluctance decreases.

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