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Electricity — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceElectricity1 Mark
MCQ
One coulomb charge is equivalent to the charge contained in :
  • A
    $2.6 \times 10^{19}$ electrons
  • B
    $6.2 \times 10^{19}$ electrons.
  • C
    $2.65 \times 10^{18}$ electrons.
  • ✓
    $6.25 \times 10^{18}$ electrons
✓

Answer

Correct option: D.
$6.25 \times 10^{18}$ electrons
The coulomb is the $SI$ unit of electric charge. It is the charge transported by a constant current of one ampere in one second. It is equivalent to the charge of approximately $6.25 \times 10^{18}$ protons or electrons.

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