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Magnetic materials used for making permanent magnets P and magnets in a transformer T have different properties of the following

Q. Magnetic materials used for making permanent magnets P and magnets in a transformer T have different properties of the following, which property best matches for the type of magnet required?

(1) P: Small retentivity, large coercivity

(2) P: Large retentivity, large coercivity

(3) T: Large retentivity, large coercivity

(4) T: Large retentivity, small coercivity                                                           (JEE-2020)

 

Aditya Bhatt Answered question 31 January 2024
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(JEE-2020)
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Official Ans. by NTA (2)

Permanent magnet must retain for long use and should not be easily demagnetised.

Aditya Bhatt Answered question 31 January 2024
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