Specimen | Number of nails picked up | Number of nails retained by the specimen |
X | 35 | 4 |
Y | 20 | 10 |
Z | 40 | 3 |
A) Ability to retain magnetism when current is removed.
B) Ability to induce e.m.f.
C) To undergo magnetostriction on removal of current.
D) Ability to change strength of magnetic field.
Correct Answer: A
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