Problem 4: Find the power dissipated (in W) in each of the following extension cords: Part (a) An extension cord having a 0.095 Ω resistance and through which 5.00 A is flowing. Part (b) A cheaper cord utilizing thinner wire and with a resistance of 0.36 Ω through which 5.00 A is flowing.

Problem 4: Find the power dissipated (in W) in each of the following extension cords: Part (a) An extension cord having a 0.095 Ω resistance and through which 5.00 A is flowing. Part (b) A cheaper cord utilizing thinner wire and with a resistance of 0.36 Ω through which 5.00 A is flowing.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section: Chapter Questions

Problem 19PQ

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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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Problem 4: Find the power dissipated (in W) in each of the following extension cords:

Part (a) An extension cord having a 0.095 Ω resistance and through which 5.00 A is flowing.

Part (b) A cheaper cord utilizing thinner wire and with a resistance of 0.36 Ω through which 5.00 A is flowing.

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