Assertion :For making permanent magnets, steel is preferred over soft ion. Reason: As retentivity of steel is smaller

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Steel is preferred over soft iron for making permanent magnets, because coercivity of steel is larger.

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