Exam-style question
Try this first
What is the relationship between terminal potential difference and lost volts in a circuit?.
- A.Terminal potential difference = emf - lost volts
- B.Terminal potential difference = emf + lost volts
- C.Terminal potential difference = lost volts - emf
- D.Terminal potential difference = emf x lost volts
Model answer
What a good answer should say
- Terminal potential difference = emf - lost volts
Explanation
Why this works
The terminal potential difference is calculated by subtracting the lost volts from the emf, which accounts for energy lost due to internal resistance in the circuit.
Common mistake
No common mistake is linked to this question yet.