Magnetism Question 24
Question: Assertion : For making permanent magnets, steel is preferred over soft iron. Reason : As retentivity of steel is smaller.
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.
E) If assertion is false but reason is true.
Show Answer
Answer:
Correct Answer: B
Solution:
Steel is preferred over soft iron for making permanent magnets, because coercivity of steel is larger.
BETA
