Question

how many electrons will flow in 30s if change on one electron is 1.6*1/10¹⁹ , when charge is 6c​

Answer 1

GiveN :-

• Charges flow for 30 Seconds .
• Charge on one electron is 1.6*20-¹⁹.
• The charge is 6 Columb .

To FinD :-

• The number of electrons flowing .

SolutioN :-

We know that the rate of flow of charge is called as current. And given that 6 C charge is flowing . The time is 30 s and we have to take charge on one electron as 1.6 * 10-¹⁹ C . So we also know that Charge is the integral multiple of the Number of electrons present on it . So ,

★ Using the formula :-

$\sf\dashrightarrow \pink{ Charge = n \times e } \\\\\sf\dashrightarrow 6C = n \times 1.6 \times 10°{-19} C \\\\\sf\dashrightarrow n =\dfrac{6\ C }{1.6\times 10^{-19} C } \\\\\sf\dashrightarrow \underset{\blue{\sf Required \ Number }}{\underbrace{ \boxed{\pink{\frak{ n_{(electrons )}= 3.75 \times 10^{19} }}}}}$