Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 23 - Think and Explain: 68

Answer

Circuit 5.

Work Step by Step

Of the circuits, only #5 is a complete loop. Circuits 1 and 2 connect the positive terminal to the negative terminal with a wire. This is known as a short circuit and will result in a large current that will drain the battery. Circuit 3 has each end of the lightbulb filament connected to one battery terminal, which places both ends of the filament at the same potential. No current will be driven. Circuit 4 has only one end of the lightbulb filament connected. The glass bulb will not conduct.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.