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Grade: 10 

                        
there are two electric bulbs (1) marked 60 w,220 v (2) marked 100 w,220 v. which one of them has higher resistance?
4 years ago

Answers : (1)

Vikas TU
12157 Points 
							
R = v^2/P
R1 = 220*220//60 = 806.66 ohm.
R2 = 220*220/100 = 484 ohm.
Now U can compare easily.
Bulb 2 has more resistance.
4 years ago
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