Question

If the charge on an electron is 1.6×10^-19 coulombs,how many electrons should pass through a conductor in 1 sec to constitute 1 ampere current?​

Answer 1

Answer:

The charge on one electron is 1.6 x 10^-19 C

Solving by unitary method :

If the charge on one electron is 1.6x 10^-19 C,

Then the charge on ? Electrons is 1C?

? = 1/ 1.6x10^-19

= 0.625 x 10^19 = 6.25 x 10^18 electrons

Solving by formula:

Q = ne

Q is charge

n is no. Of electrons

e is charge on an electron which is 1.6x10^-19C

n = Q/e = 6.25 x 10^18 electrons

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Answer 2

Answer:

Given that

Charge (Q) = 1 C

Electron (e) = 1.6× 10^-19

Number of electron (n) = ?

Q= ne

1 C = n × 1.6×10^-19 C

n = 1/(1.6×10^-19)

n = 6.25 × 10^18 electron