3_Chapter 18 HomeworkCH18 Direct-Current Circuits

3_Chapter 18 HomeworkCH18 Direct-Current Circuits - the...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Direct-Current Circuits 101 20. Even if the fuse were to burn out or the circuit breaker to trip, there would still be a current path through the device, and it would not be protected. 22. When connected in series, all bulbs carry the same current. Thus, the one with the lowest resistance dissipates the least power 2 IR = P and glows the dimmest. This is seen to be
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: the bulb that is labeled “200 W”. If they were connected in parallel, all bulbs would have the same potential difference across them. Then, the one with the lowest resistance will dissipate the most power ( ) 2 V = ∆ P R and glow the brightest. 24. The break is closer to A....
View Full Document

This document was uploaded on 10/20/2011.

Ask a homework question - tutors are online