Q. Two electric bulbs marked 25W – 220V and 100W – 220V are connected in series to a 440Vsupply. Which of the bulbs will fuse?
A) Both
B) 25 W
C) Neither
D) 100 W
✔ Correct Answer: 25 W
Exam Insight
The 25W, 220V bulb will fuse as the total voltage exceeds its rated capacity when connected in series with the 100W bulb.