Question

A heating element is marked , . Find the resistance of the element when connected to a dc source.

Easy

Solution

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Given: A heating element is marked
To find the resistance of the element when connected to a dc source.
Solution: 
The power of the heating element is Watt and its voltage is . Thus, the current drawn can be calculated with the formula 
where denotes the power, stands for the voltage and is the symbol of the current. 
So the value of the current drawn
And the resistance of the element when connected to a dc source =

Solve any question of Current Electricity with:-

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