23) The length of a certain wire is kept same while its radius is doubled. What is the new resistance of this wire? A) It is reduced by a factor of 8. B) It is increased by a factor of 4. C) It is reduced by a factor of 2. D) It is increased by a factor of 2. E) It is reduced by a factor of 4.

23) The length of a certain wire is kept same while its radius is doubled. What is the new resistance of this wire? A) It is reduced by a factor of 8. B) It is increased by a factor of 4. C) It is reduced by a factor of 2. D) It is increased by a factor of 2. E) It is reduced by a factor of 4.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 9.7CYU: Check Your Understanding The resistance between the two conductors of a coaxial cable depends on the...

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Concept explainers

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.

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please type out all of your solutions I have bad eyesight and handwriting can be hard for me to read please show all calculations if needed

23) The length of a certain wire is kept same while its radius is doubled. What is the new resistance
of this wire?
A) It is reduced by a factor of 8.
B) It is increased by a factor of 4.
C) It is reduced by a factor of 2.
D) It is increased by a factor of 2.
E) It is reduced by a factor of 4.

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