engineering recuitment HPCL Junior Executive 2025 Mock Test Engineering Materials Science Structure and Properties of Engineering Materials Properties of Materials
Consider the following statements regarding magnetic materials:
1. Soft magnets have a narrow hysteresis curve and high initial permeability.
2. Soft iron is known to have high retentivity and low susceptibility to magnetism.
3. Hard magnetic materials have high coercivity.
Which of the following statements are correct?
1
1, 2 and 3
2
1 and 3 only
3
2 and 3 only
4
1 and 2 only