Reshma can identify the magnets by bringing each bar close to the other two. If a bar repels one and attracts the other, it is a magnet. The iron bar will only be attracted.
Reshma bought three identical metal bars from the market. Out of these bars, two were magnets and one was just a piece of iron. How will she identify which two amongst the three could be magnets (without using any other material)?
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Reshma will bring the the three bars close to each other
Reshma can identify the magnets by testing how each bar interacts with the others. She should bring one bar near the other two, one at a time. If the bar repels one and attracts the other, it’s a magnet since magnets repel like poles and attract unlike poles. She should repeat this with the remaining bars. The iron bar will only show attraction to both magnets, as it lacks magnetic poles to cause repulsion.
For more CBSE Class 6 Science Curiosity Chapter 4 Exploring Magnets Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions-class-6-science-curiosity-chapter-4/