Explore BrainMass
Share

Lightbulbs and Fuses

How many 100-W lightbulbs connected to 120V can be used without blowing a 15-A fuse?

I = P/V
I = 100W/120V = .8A
I divided 15 A by .8 A to equal 18.75; therefore, you could use 18 bulbs.

Why is the answer incorrect? You don't need to provide a solution - just a reason why this solution is incorrect.

© BrainMass Inc. brainmass.com August 15, 2018, 1:01 am ad1c9bdddf

Solution Preview

In general, your answer is correct. If it is really an incorrect answer the only ...

Solution Summary

This solution provides an explanation regarding lightbulbs and fuses.

$2.19