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प्रश्न
Paheli set up an experiment using liquid A in the beaker as shown in the following figure. She observed that the bulb glows. Then she replaced the liquid A by another liquid B. This time the bulb did not glow. Boojho suggested replacing the bulb by an LED. They observed that the LED glows. Explain.
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उत्तर
Liquid A is a good conductor of electricity and it allows the maximum current to pass through it which is sufficient to glow the bulb.
But when it is replaced by another liquid B, bulb does not glow because the current through liquid B could be weak and therefore unable to make the bulb glow.
But the small current which is passing through B is sufficient to glow a low voltage LED, so it glows.
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संबंधित प्रश्न
The passage of an electric current through a solution causes ______ effects.
Electroplating is an example for ______.
Boojho’s uncle has set up an electroplating factory near his village. He should dispose off the waste of the factory
One of the most common applications of chemical effect of electric current is ______.
Why is tin electroplated on iron to make cans used for storing food?
A chemical reaction happens when electricity passes through various conducting liquids.
Explain the following:
Short circuit.
Liquids that conduct electricity are the solutions of ______.
Name the process which shows the chemical effect of electric current?
What are anodes and cathodes?
