Question

calculate the number of electrons passing per second through a conductor to produce a current of 1 ampere

Answer 1

Hey!

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Charge on electrons = 1.6 × 10^-19

We know,

I = qt

[ Where, I = Current , q = charge and t = time ]

And we know,

q = ne

(ne = number of electrons )

1 = n × 1.6 × 10^-19

n = 1 / 1.6×10^-19

n = 6.25 × 10^18

6.25 × 10^18 of electrons pass per second through a conductor to produce a current of 1 ampere.

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Hope it helps...!!!

Answer 2

Hey there

Lemme Introduce you first from relevant formula that I would use over here

Q = n e

$Q \: = ne \\ \\ Q = n \times 1.6 \times {10}^{ - 19} ....[ \: 1 \: ]$

Now using Electric current formula

$I = \frac{Q}{T} \\ = > \ 1 = \frac{Q}{1} \\ \\ = > Q = 1 c$
From equation :- ( 1)

$n = \frac{1}{1.6 \times {10}^{ - 19} } = {0.625 \times {10}^{ +19} }$

or simply we can write it as :-

n = 6 .25 × 10 ^18

Hope this helps you ☺