A 4.0 kW heater element from a dryer has a length of 100 cm. If a 20 cm section is removed, what power is used by the now shortened element at 120 V in kW? Option1 Option2 Option3 Option4 Option5 1.2 1.8 2.4 2.8 3.2 a) Option2 b) Option1 C) O Option3 Option4 Option5

A 4.0 kW heater element from a dryer has a length of 100 cm. If a 20 cm section is removed, what power is used by the now shortened element at 120 V in kW? Option1 Option2 Option3 Option4 Option5 1.2 1.8 2.4 2.8 3.2 a) Option2 b) Option1 C) O Option3 Option4 Option5

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 14CQ: The power dissipated in a resistor is given by P = V2/R, which means power decreases if resistance...

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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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