Question

An electron gun emits 2.0 $\times {10}^{16}$ electrons per second. What electric current does this correspond to ?

Answer 1

No. of electrons per second

= 2 $\times {10}^{16}$ electrons /s.

Charge passing per second

= 2 $\times {10}^{16}\times 1.6\times {10}^{-18}$

= 3.2 $\times {10}^{-3}$

coulomb per second Current

= 3.2 $\times {10}^{-3}$ A