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Grade:

                        

100W and 500W bulbs are connected in series to mains which bulb will glow brighter

2 years ago

Answers : (1)

Divyansh Nema
17 Points
							
   
    POWER =  (CURRENT)^2  ×  RESIST
   
    P = I^2 R 
   
   IN SERIES CURRENT IS CONSTANT 
 
   100 / constant  =  R1 
   500 / constant  =  R2 
 
    R2 > R1 
    
    
 
    LET  V =  X  FOR BOTH BULBS 
    
   P  =  V^2 / R
    
   P1 = X^2 / R1           P2 = X^2 / R2
  
   P1 > P2
  
  THUS  100 W BULB GLOWS BRIGTER
   
2 years ago
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