Book edition 1st Edition

Author(s) Paul Peter Urone

Pages 1272 pages

ISBN 9781938168000

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Short Answer

Does the resistance of an object depend on the path current takes
through it? Consider, for example, a rectangular bar—is its resistance
the same along its length as across its width?

Yes, an object's resistance can be affected by the current path it travels. If the

increase in L is greater than the increase in A, the resistance will rise, and vice

versa.

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Definition of resistance

In an electrical circuit, resistance is a measure of the resistance to current

flow. The Greek letter omega (Ω) is used to represent resistance in ohms.

Step 2: Explaining if the resistance of an object depends on the path of the current

Yes, an object's resistance varies along its length and width. An item with a length L

and a cross-sectional area A has a resistance R of:

$R = \frac{ρL}{A}$

In the rectangular bar example, the resistance will increase if the increase in L is

greater than the increase in A, and vice versa.

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College Physics (Urone)

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Short Answer

Does the resistance of an object depend on the path current takes
through it? Consider, for example, a rectangular bar—is its resistance
the same along its length as across its width?

Step by Step Solution

Step 1: Definition of resistance

Step 2: Explaining if the resistance of an object depends on the path of the current

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College Physics (Urone)

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Short Answer

Does the resistance of an object depend on the path current takes through it? Consider, for example, a rectangular bar—is its resistance the same along its length as across its width?

Step by Step Solution

Step 1: Definition of resistance

Step 2: Explaining if the resistance of an object depends on the path of the current

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Does the resistance of an object depend on the path current takes
through it? Consider, for example, a rectangular bar—is its resistance
the same along its length as across its width?