Ncert solutions

Ncert solutions

Grade 8

Chemical Effects and Electric Current | Exercise

Question 10

Q10) Paheli had heard that rainwater is as good as distilled water. So she collected some rainwater in a clean glass tumbler and tested it using a tester. To her surprise she found that the compass needle showed deflection. What could be the reasons?

Solution:

Rain water is pure water but as it falls down it gets mixed with air.

Air contains gases, suspended particles and pollutants.

This makes rainwater a good conductor of electricity

Hence, Paheli could see a deflection in the compass needle.

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subject-cta

Question 10

Q10) Paheli had heard that rainwater is as good as distilled water. So she collected some rainwater in a clean glass tumbler and tested it using a tester. To her surprise she found that the compass needle showed deflection. What could be the reasons?

Solution:

Rain water is pure water but as it falls down it gets mixed with air.

Air contains gases, suspended particles and pollutants.

This makes rainwater a good conductor of electricity

Hence, Paheli could see a deflection in the compass needle.

Still have questions? Our expert teachers can help you out

Book a free class now

Want to top your science exam ?

Learn from an expert tutor.

Book a free class now
subject-cta
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