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Boojho kept a magnet close to an ordinary iron bar. He observed that the iron bar attracts a pin as shown in figure. What inference could he draw from this observation? Explain.
 
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Bar magnet near an iron bar
 
Boojho could infer from this observation that the iron bar is induced with of the bar magnet. The iron bar acts as a till it is kept near the bar magnet. This makes the pin to the iron bar.