The charge on an electron is 1.6×10¹9C . Find the number of electrons that will flow per second to constitute a current of 2A. 

Asked by pdcavita | 26th Nov, 2017, 08:48: PM

Expert Answer:

I space equals 1 A equals fraction numerator 1 space C over denominator 1 s e c end fraction

1 space e space equals space 1.6 X 10 to the power of negative 19 end exponent space C

1 space C space equals space fraction numerator 1 over denominator 1.6 X 10 to the power of negative 19 end exponent space end fraction space e l e c t r o n s
space equals 0.625 space x 10 to the power of 19 space space space e l e c t r o n s

I space equals 1 A equals fraction numerator 1 space C over denominator 1 s e c end fraction equals 0.625 space x 10 to the power of 19 space space equals 6.25 space x 10 to the power of 18 space space space e l e c t r o n s

2 x 1 space A equals fraction numerator 1 space C over denominator 1 s e c end fraction equals 2 x space 0.625 space x 10 to the power of 19 space space equals 2 x space 6.25 space x 10 to the power of 18 space space space e l e c t r o n s space equals space 12.50 x 10 to the power of 18 space space e l e c t r o n s

Answered by Gajendra | 7th Dec, 2017, 02:47: PM