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Q.

Is it true that the heating effect of current is utilised in the bulb?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is True.
When an electric current passes through a high-resistance tungsten filament, then due to high resistance, it produces heat and emits light. The heating effect of the electric current is utilised in the bulb. A bulb uses the heating effect of current to produce light by heating its filament and causing it to burn, or emit, light.
 
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