Question
Question: If a piece of metal was thought to be magnet, which one of the following observations would offer co...
If a piece of metal was thought to be magnet, which one of the following observations would offer conclusive evidence?
A
It attracts a known magnet
B
It repels a known magnet
C
Neither (1) nor (2)
D
It attracts a steel screw driver
Answer
It repels a known magnet
Explanation
Solution
Repulsion is the sure test of magnetism.