Question

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?

Answer 1

1. The ability to conduct sound, electricity, or heat is referred to as a conducting solution.
2. Dissolved salts are present in rainwater. Any mineral in water, such as salt, makes it a good conductor of electricity and permits electric current to flow through it. A conducting medium is formed by salts dissolved in water. Because distilled water is devoid of minerals, it is a poor conductor of electricity.
3. The compass needle deflects because whenever current runs through a conducting body, it also creates a magnetic flux, which is why the compass was unable to estimate the earth's magnetic field and displayed deflection.
4. However, water that is distilled in nature does not contain dissolved salts in it so it does not have any property of showing deflection in compass.

Rainwater is a conductive solution because it contains dissolved salts. There are no dissolved salts in distilled water, which is why rainwater allows electricity to travel through it but distilled water does not.