Question

an electric bulb is marked 40 watt and 120 volt it means that in 1 second it converts

Answer 1

P = IV

40= I× 120
I = 40/120
I =0 .33

current, I = Q/t
Q = I × t
0.33 ×1 =Q
Q = 0.33

in 1 second it convert 0.33 coulomb charge into 40 volt power

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Answer 2

heya ' your answer is 

given , power P = 40 watt and volt V = 120 V

therefore ,

                      current I = P/V = 40/120 =0.33 ampere 

now ,
           I = Q/t
           Q= I x t 

  in one second 

            Q =  0.33/1 =0.33 coulomb
hence , in  one second it convert 0.33 coulomb charge into 40 watt power 


i m right or m i right