Question
Physics Question on Moving charges and magnetism
Alnico is used for making permanent magnets because it has
A
High coercivity and high retentivity
B
high coercivity and low retentivity
C
low coercivity and low retentivity
D
low coercivity and high retentivity
Answer
High coercivity and high retentivity
Explanation
Solution
Answer (a) High coercivity and high retentivity