Question

How much current will flow through a conductor if 6.25×10^20 electrons are flowing through a conductor in 2 seconds

Answer 1

AnswEr :

50 ampere current would flow through the conductor in 2 sec

Explanation :

Given,

• Number of electrons (n) = 6.25 × 10^20

• Time taken (t) = 2 sec

To finD

Magnitude of current

Quantization of Charge

Every particle in the universe bears a charge which is an integral multiple of charge of an electron

Thus,

$\sf Q = ne \\ \\ \longmapsto \sf Q = (6.25 \times 10^{20} )(1.6 \times 10^{-19}) \\ \\ \longmapsto \sf Q = (6.25 \times 1.6) \times 10^{20-19} \\ \\ \longmapsto \boxed{\boxed{\sf Q = 100 C}}$

We know that,

$\huge{\boxed{\boxed{\sf I = \dfrac{Q}{t}}}}$

(Putting the values)

$\longrightarrow \sf I = \dfrac{100}{2} \\ \\ \large{\longrightarrow \boxed{\boxed{\sf I = 50 A}}}$