Three bulbs are rating 40W 60W and 100W designed to work on 220V mains. Which bulb will burn most brightly if they are connected in series across 220 V mains ?
A60 W blub
B100 W blub
Call will burn equally brightly
D40 W bulb
Correct answer
D. 40 W bulb
Explanation
40 W bulb is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.