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Physics
Materials suitable for permanent magnet, must have which of the following properties ?
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Q. Materials suitable for permanent magnet, must have which of the following properties ?
JIPMER
JIPMER 2010
Magnetism and Matter
A
High retentivity, low coercivity and high permeability
12%
B
Low retentivity, low coercivity and low permeability
9%
C
Low retentivity, high coercivity and low permeability
7%
D
High retentivity, high coercivity and high permeability
72%
Solution:
Materials suitable for permanent magnets should have high retentivity, high coercivity and high permeability.