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How is electric power defined in terms of energy?
AThe total electric energy ever stored in a circuit
BThe maximum voltage a circuit element can withstand
CThe number of electrons passing a point, regardless of time
DThe rate at which electric energy is transferred in a circuit
Answer & Solution
Correct answer: D. The rate at which electric energy is transferred in a circuit
1. Power in general is described as a rate of energy transfer, not a fixed amount.
2. Electric power specifically is the rate at which electric energy is transferred in a circuit.
3. A maximum voltage rating and an electron count without a time reference are not the definition given for power.
_Source: OpenStax Physics (CC BY 4.0), Ch 19 "Electrical Circuits", section 19.4 Electric Power_
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