Magnetism Question 141
The material of permanent magnet has high coercivity and retains magnetization after the external magnetic field is removed.
[KCET 1994, 2003; AFMC 2004]
Options:
A) High retentivity, low coercivity
B) Low retentivity, high coercivity
C) Low retentivity, low coercivity
D) High retentivity, high coercivity
Show Answer
Answer:
Correct Answer: D
Solution:
From the characteristics of the B-H curve.
BETA
