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Question
Physics
Materials suitable for permanent magnet, must have which of the following properties ?
Q. Materials suitable for permanent magnet, must have which of the following properties ?
3682
260
JIPMER
JIPMER 2010
Magnetism and Matter
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A
High retentivity, low coercivity and high permeability
14%
B
Low retentivity, low coercivity and low permeability
14%
C
Low retentivity, high coercivity and low permeability
7%
D
High retentivity, high coercivity and high permeability
65%
Solution:
Materials suitable for permanent magnets should have high retentivity, high coercivity and high permeability.