Question

Find the number of electrons are flowing if a wire holds 2A of electric current for seconds

Answer 1

Given :

Current flowing in the wire = 2A

To find :

Number of electrons flowing per second in the wire =?

Solution:

• 1 coulomb of charge have 6.242×10¹⁸ electrons

• Ampere (Unit of charge ) = 1 coulomb per second

• 1 Ampere = 6.242×10¹⁸ electrons per second

• 2 Amperes of charge = 2×6.242×10¹⁸ electrons

                                    = 12.484×10¹⁸ electrons

The number of electrons flowing per second is 12.484×10¹⁸ electrons