What material did Tyndall use in his study of diamagnetism?
Steel
Iron
Copper
Bismuth
Answer
Tyndall was a nineteenth century physicist who studied diamagnetism, the property of some materials to be repelled by a magnetic field. In his experiments, he used bismuth, a metal that is diamagnetic. When placed in a magnetic field, bismuth will be pushed away from the field. This is because the electrons in bismuth are arranged in such a way that they create a magnetic field that opposes the external field.
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