Book edition 1st Edition

Author(s) Paul Peter Urone

Pages 1272 pages

ISBN 9781938168000

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Short Answer

Given a battery, an assortment of resistors, and a variety of voltage and current measuring devices, describe how you would determine the internal resistance of the battery.

Internal resistance is $R_{int} = R_{tot} - R_{ext .}$

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Definition of internal resistance

Internal resistance is referred to as the opposed flow of current by the cells itself resulting in the generation of heat.

Step 2:Calculating internal resistance

To determine the internal resistance of the battery, we need to have some information. The first would be raw voltage( $U_{raw}$ ) with no current flowing through. Next, we need to attach to the circuit, between the poles, a resistor with known resistance $R_{ext}$ . Then we can calculate the expected current, which would happen if the source was perfect, with no internal resistance. After that, we can measure real current, $I_{real}$ , and calculate total resistance as:

$R_{tot} = \frac{U_{raw}}{I_{real}}$

Finally, internal resistance is calculated as:

$R_{int} = R_{tot} - R_{ext}$

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College Physics (Urone)

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Short Answer

Given a battery, an assortment of resistors, and a variety of voltage and current measuring devices, describe how you would determine the internal resistance of the battery.

Step by Step Solution

Step 1: Definition of internal resistance

Step 2:Calculating internal resistance

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College Physics (Urone)

Answers without the blur.

Short Answer

Given a battery, an assortment of resistors, and a variety of voltage and current measuring devices, describe how you would determine the internal resistance of the battery.

Step by Step Solution

Step 1: Definition of internal resistance

Step 2:Calculating internal resistance

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