Exam-style question
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What is the definition of electromotive force (emf)?.
- A.Energy supplied per unit charge
- B.Charge per unit time
- C.Potential difference across a component
- D.Total energy in a circuit
Model answer
What a good answer should say
- Energy supplied per unit charge
Explanation
Why this works
Electromotive force (emf) is defined as the energy supplied per unit charge, which is crucial for understanding how energy is transferred in electrical circuits.
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