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Current Electricity — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity2 Marks
Question
An electron gun emits $2\times10^{16}$ electrons per second. What electric current does this correspond to?
✓

Answer

No. of electrons per second = $=2\times10^{16}$ electrons/ sec.
Charge passing per second $=2\times10^{16}\times1.6\times10^{-9}\frac{\text{coulomb}}{\text{sec}}$
$=3.2\times10^{-9}$ Coulomb/ sec
Current $=3.2\times10^{-3}\text{A}.$

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