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Q.

Is it true that liquids having a low conductivity can light up an LED bulb?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is True.
Liquids having low electrical conductivity is enough to light up a LED bulb. LED is also called Light Emitting Diode. LEDs consume very low energy but produce a good amount of light. LEDs are made from semiconductor diodes. They allow the unidirectional passage of electricity. They do not get easily damaged. Due to their high working efficiency, LEDs are used in households as they consume much less power.
 
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