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LED

In the given ...

Question

In the given figure, what should be the liquid `X' from the following options inorder to make the LED glow?

A

Sugar solution

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B

Kerosene

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C

Vinegar

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D

Mustard oil

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Solution

The correct option is C Vinegar
Among the given options, vinegar would make the LED glow with a lesser intensity because it is a weak conductor of electricity. Whereas, the rest (sugar solution, kerosene and mustard oil) are bad conductors of electricity and hence, they cannot make the LED glow.

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