Image that you have three steel rods that appear to be identical. However, two of the...
Image that you have three steel rods that appear to be identical. However, two of the three are magnetized, having a north magnetic pole and a south magnetic pole. The third rod is not magnetized. Explain how you could find out which one is not magnetized, using only the three rods.
Homework Answers
Lets say A B and C are the given rods out of which 2 rods are magnetised..
Hint: reputation is sure test of magnetism
Lets take A and B (both might be magnetised or only one is magnetised). Bring A and B closer
1) if they attract then rotate any one of the rod by 180degree and if they repel then surely both of them are magnetised and the rod C is not magnetised. Supposed if they attract even in the second case then any one of magnetised and the other is not.
2)once you find out that either A or B is magnetised then repeat step 1 with A and C. If they repel then surely A and C are magnetised and B is not magnetised. Else rotate any one by 180degre and if they attract then surely A is not magnetised.
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