Rajat collected some rainwater in a clean glass tumbler and tested it using a tester. To his surprise he found that the compass needle showed deflection. What could be the possible reason for his observation?

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Solution

Many impurities and salts get dissolved in the rain water while it comes to the ground. Due to the presence of these impurities, rainwater conducts electricity and hence the magnetic needle deflects. This explains Rajat’s observation.

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