Which of the following is NOT true ?
Answer & explanation
Correct answer: option 3
It is found that the a superconducting sample expels the magnetic flux as it becomes superconducting. This is called the Meissner effect . Thus a Superconducting materials are strongly repelled from permanent magnets.
Diamagnetic materials are weakly repelled by permanent magnets.
Paramagnetic materials are weakly attracted to permanent magnets.
Ferromagnetic materials are strongly attracted to permanent magnets.