Magnetism Question 9
Question: Assertion : The ferromagnetic substance do not obey Curie’s law. Reason : At Curie point a ferromagnetic substance start behaving as a paramagnetic substance.
Options:
A) If both assertion and reason are true and the reason is the correct explanation of the assertion.
B) If both assertion and reason are true but reason is not the correct explanation of the assertion.
C) If assertion is true but reason is false.
D) If the assertion and reason both are false.
Show Answer
Answer:
Correct Answer: B
Solution:
The susceptibility of ferromagnetic substance decreases with the rise of temperature in a complicated manner. After Curies point the susceptibility of ferromagnetic substance varies inversely with its absolute temperature. Ferromagnetic substance obey’s Curies law only above its Curie point.
BETA
