1.

Calculate the number of electrons that flows per second to constitute a current of one ampere. Charge on an electrons is 1.6*10 raise to power -19 coloumb

Answer»

Your answer ----

Given, time t = 1s current I = 1A

we KNOW that

I = Q/t

=> Q = I × t

=> Q = 1 × 1 = 1

We know that

Q = ne

where ,

Q = charge

N = number of electron

e = elementary charge ( = 1.6 × 10^-19 )

put the values , we get

1 = n × 1.6 × 10^-19

=> n = 1/(1.6×10^-19)

=> n = 6.25 × 10^18 electrons


Hence, 6.25 × 10^18 electrons flows per second to constitute a current of one ampere.


【 HOPE it helps you 】


Discussion

No Comment Found

Related InterviewSolutions