Question

find no. of electron flowing through a circuit of 1 a of current which flows through ot for 10 sec​

Answer 1

Need to FinD :-

• The number of electrons flowing .

$\red{\frak{Given}}\begin{cases}\textsf{ Electrons flow for a time of 10s .}\\\textsf{ The current is one Ampere .}\end{cases}$

We know that the rate of flow of charge is called Electrical Current . And the Charge is integral multiple of the number of electrons present on the body. Here let the number of electrons be n.

• According to Question:-

$\sf:\implies Current (I) = \dfrac{Charge(q)}{time(t)} \\\\\sf:\implies I = \dfrac{ ne}{t} \\\\\sf:\implies 1\ A = \dfrac{ n\times 1.6\times 10^{-19} C }{10s} \\\\\sf:\implies n = \dfrac{ 10}{1.6\times 10^{-19} C} \\\\\sf:\implies \boxed{\pink{\frak{ n_{(electrons)}= 6.25\times 10^{19} }}}$