KCET · Physics · Magnetic Effects of Current
In a permanent magnet at room temperature
- A domains are partially aligned.
- B magnetic moment of each molecule is zero.
- C domains are all perfectly aligned.
- D the individual molecules have non-zero magnetic moment which are all perfectly aligned.
Answer & Solution
Correct Answer
(A) domains are partially aligned.
Step-by-step Solution
Detailed explanation
Even in the case of a permanent magnet all the domains are not perfectly aligned due to thermal agitations
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