Question

If a current of 5 Amperes flows through the conductor. The number of electrons per second will is

Answer 1

Answer:

t=1sec

I=5A

by,Q=IT

Q=5×1=5C

Answer 2

Given:

• Current =  5 Amperes
• Time = 1 second

To find:

Number of electrons =  ?

Solution:

$\rm{We \: know \: that;}$

$\boxed{\pink{\bf{Number \: of \: electrons = \dfrac{Total \:Charge}{Charge \: on \: 1 \: electron}}}}$

$\leadsto \: \: \sf{N = \dfrac{q}{e}}$

$\dashrightarrow \: \: \sf{N = \dfrac{Current \times time}{1.6 \times 10^{-19}}}$

$\dashrightarrow \: \sf{N = \dfrac{5 \times 1}{1.6 \times 10^{-19}}}$

$\dashrightarrow \: \: \sf{N = \dfrac{5 \times 10^{19}}{1.6}}$

$\dashrightarrow \: \: \sf{N = \dfrac{5}{1.6} \times 10^{19}}$

$\therefore \: \boxed{\boxed{\bf{\red{N = 3.125 \times 10^{19}}}}}$

So, the number of electrons per second = 3.125 × 10¹⁹

KNOW MORE:

An atom consists of Protons, Neutrons and Electrons.

• Electrons are ions that carry negative charge whereas protons carry positive charge
• Charge on 1 electron = 1.6 × 10⁻¹⁹ Coulombs
• Electric circuit is defined as a closed path where the electric current flows