Exam-style question
Try this first
What is the formula for electromotive force (emf) in terms of energy supplied and charge?.
- A.emf = energy supplied / charge
- B.emf = charge / energy supplied
- C.emf = energy supplied x charge
- D.emf = energy supplied - charge
Model answer
What a good answer should say
- emf = energy supplied / charge
Explanation
Why this works
The formula for electromotive force (emf) defines it as the energy supplied per unit charge, which is fundamental in understanding how batteries and power supplies work in circuits.
Common mistake
No common mistake is linked to this question yet.