Hard magnets are materials, in which the process of a. magnetization is done easily, but demagnetization is difficult b. demagnetization is done easily, but magnetization is difficult c. magnetization and demagnetization is done easily d. magnetization and demagnetization is difficult
zapri4j
Answered question
2022-09-27
a. magnetization is done easily, but demagnetization is difficult
b. demagnetization is done easily, but magnetization is difficult
c. magnetization and demagnetization is done easily
d. magnetization and demagnetization is difficult
Answer & Explanation
Jamari Morgan
Beginner2022-09-28Added 10 answers
Hard magnets have high coercivity and high remanence. They also have high hysteresis loss.
In case of hard magnets magnetization and demagnetization is difficult because they are very hard and there are crystal defects due to motionless domain walls
Correct option is :
c. magnetization and demagnetization is difficult
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