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The dimensions of χ are ____________

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The dimensions of χ are ____________

(a) [AL]

(b) [AL^2T^-1]

(c) [AM^2L^4T]

(d) Dimensionless

This question was addressed to me in class test.

This intriguing question originated from Parameters in portion Magnetic Properties of Materials of Engineering Physics II

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Correct option is (d) Dimensionless

To explain I would say: χ is a dimensionless quantity and is called the magnetic susceptibility. It is used to identify the magnetic property of the material.

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