The flow of the electric current through a metallic conductor is:
Only due to electrons
Due to both nuclei and electrons.
Can not be predicted.
Only due to +ve charges
A
Can not be predicted.
B
Only due to electrons
C
Due to both nuclei and electrons.
D
Only due to +ve charges
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Solution
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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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