Short CircuitEasyQuestion 31623
Question
When a cell is short-circuited, terminal voltage equals:
- AEMF
- BZeroCorrect
- CEMF/2
- D2×EMF
Correct answer
Zero
Explanation
V = E − Ir = E − I_sc×r. At short circuit, R_ext = 0, so I_sc = E/r and V = E − (E/r)×r = 0.