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Question

The relative permeability of silicon is 0.99837 and that of palladium is 1.00692, choose the correct option from the following :
  1. silicon is paramagnetic and palladium is ferromagnetic
  2. silicon is ferromagnetic and palladium is paramagnetic
  3. silicon is diamagnetic and palladium is paramagnetic
  4. Both are paramagnetic

A
silicon is ferromagnetic and palladium is paramagnetic
B
silicon is paramagnetic and palladium is ferromagnetic
C
silicon is diamagnetic and palladium is paramagnetic
D
Both are paramagnetic
Solution
Verified by Toppr

Diamagnetic Paramagnetic Ferromagnetic
-1 χ < 0 0 < χ < ε χ >> 1
0 μr < 1 1 < μr < 1+ ε μr >> 1
χ = magnetic susceptibility
μr = relative permeability.
ε < 1 and small.

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