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Lim Si Hui asked in Physics

Q. How the resistance of a filament lamp changes during the first 1.0 sec based on
        
           
          





how the resistance of lamp changes
 

Thank You
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Sachin Kumar Mittal answered this

From given graph we can see that resistance of bulb first increases with time and become constant or saturates after sometime.we can say that first temp increases then temp becomes constant so resistance also becomes constant.