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JEE MAIN 2020
02-09-20 S1
Question
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?
Select the correct option:
A
T : Large retentivity, small coercivity
B
P : Large retentivity, large coercivity
C
P : Small retentivity, large coercivity
D
`T : Large retentivity, large coercivity
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
Option (2) is correct as permanent magnet should have high coercivity & retentivity.
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