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
(JEE-2020)
Best Solutions:-
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
