Conceptual Physics (12th Edition)

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

Chapter 23 - Think and Explain: 68


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.
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