What is the maximum number of 60-W light bulbs you can connect in parallel in a 120-V home circuit without tripping the 20-A circuit breaker?
A) 3600
B) 59
C) 11
D) 39

Question

Quizplus · Accepted Answer

The total current for the bulbs should not exceed 20 A. Each 60-W bulb draws 0.5 A (60 W / 120 V). Therefore, 20 A / 0.5 A per bulb = 40 bulbs. However, to avoid tripping, you can safely connect 39 bulbs.

What Is the Maximum Number of 60-W Light Bulbs You