alleryWhich physical quantity is defined as the rate of flow of electric charge?
AElectric resistance
BElectric power
CElectric energy
DElectric current
Answer & Solution
Correct answer: D. Electric current
1. The rate of change (flow) of charge with time is electric current: $I = Q/t$.
2. Power is rate of energy use, not charge, so it is wrong.
3. Energy and resistance are not rates of charge flow.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 4 Electricity "Electricity", p.62_
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