Physics Laboratory Manual
Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 32, Problem 1PLA
To determine

The emf and the internal resistance of typical new dry cell and for a very old dry cell.

Expert Solution & Answer
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Answer to Problem 1PLA

The emf of typical new dry cell is between 1.50 volt and 1.6 volt and its the internal resistance is between 1 ohm to a few ohms. And the emf of a very old dry cell is 1.3 volts and its internal resistance is several thousand ohms.

Explanation of Solution

The electromotive force (emf) of a new dry cell is ranges between 1.50 volt and 1.6 volt. The internal resistance of a new dry cell is ranges between 1 ohm to a few ohms.

Whereas the electromotive force (emf) of a very old dry cell might be only 1.3 volts and the internal resistance of a very old dry cell is several thousand ohms.

Conclusion:

Thus, the emf of typical new dry cell is between 1.50 volt and 1.6 volt and its the internal resistance is between 1 ohm to a few ohms. And the emf of a very old dry cell is 1.3 volts and its internal resistance is several thousand ohms.

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