alleryAn electric current is constituted by:
ACharges in motion
BCharges at rest
CNeutral matter
DEmpty vacuums
Answer & Solution
Correct answer: A. Charges in motion
1. A current needs something to flow.
2. Static charges produce no current at all.
3. Charges in motion constitute an electric current.
4. So the answer is charges in motion.
_Source: syllabus Physics, Ch 3 'Current Electricity'_
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