Question

Calculate the number of electrons consisting one coloumb of charge

Answer 1

Given that

Charge (Q) = 1 C

Electron (e) = 1.6× 10^-19

Number of electron (n) = ?

Q= ne

1 C = n × 1.6×10^-19 C

n = 1/(1.6×10^-19)

n = 6.25 × 10^18 electron

Answer 2

Answer :-

One electron possesses a charge of

1.6 ×10-19C,

i.e., 1.6 ×10-19C of charge is contained in 1 electron.

∴ 1 C of charge is contained in

1/1.6 x 10-19 

= 6.25 x 1018 

= 6 x 1018

Therefore, 6 x 1018 electrons constitute one coulomb of charge.

Note :- You can Write 1018 as 10^18 also ✔

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