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Electricity — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceElectricity1 Mark
MCQ
The flow of the electric current through a metallic conductor is :
  • ✓
    Only due to electrons
  • B
    Only due to $+$ ve charges
  • C
    Due to both nuclei and electrons.
  • D
    Can not be predicted.
✓

Answer

Correct option: A.
Only due to electrons
Protons and neutrons are strongly bound to the atoms $($in the nucleus$).$
Only electrons can be free from atoms.
The systematic flow of these free electrons constitutes a current.
Therefore, the electric current is only due to the flow of electrons.

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