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Question
Boojho made the circuit as shown in the figure. He wanted to observe what happens when an electric current is passed through water. But he forgot to add a few drops of lemon juice to water. Will it make any difference to his observations? Explain.
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Solution
No current will pass through the circuit, if the water is distilled water and lemon juice is not added. If the water is salty, a small current will pass through the circuit. Adding a few drops of lemon juice in water will increase the conductivity of the solution and large amount of current will flow easily.
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