Consider the following materials: 1. Nickel 2. Silver 3.

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Consider the following materials:
1. Nickel
2. Silver
3. Oxygen
4. Aluminium
The correct sequence of these materials in decreasing order of their magnetic permeability is:

1. 1, 4, 3, 2
2. 1, 4, 2, 3
3. 4, 1, 3, 2
4. 4, 1, 2, 3

Correct Option: B

The decreasing order of magnetic permeability
Nickel < Aluminium < Silver < Oxygen