In a large flashlight, the distance from the on-off switch and the light bulb is 9.9 cm. (a) Calculate the drift velocity for the electrons to drift this distance if the flashlight wires are made of copper, with a radius of 0.537 mm, and carry a current of 0.9 A? There are 8.49X1028 electrons per unit m³. Drift velocity, v m/s (b) How long does it take an electron to travel the distance from the on-off switch to the light-bulb? Time, t: ✔min (c) Does this time seem reasonable? Does it explain why the flashlight starts instantly? Reflect on these questions.

In a large flashlight, the distance from the on-off switch and the light bulb is 9.9 cm. (a) Calculate the drift velocity for the electrons to drift this distance if the flashlight wires are made of copper, with a radius of 0.537 mm, and carry a current of 0.9 A? There are 8.49X1028 electrons per unit m³. Drift velocity, v m/s (b) How long does it take an electron to travel the distance from the on-off switch to the light-bulb? Time, t: ✔min (c) Does this time seem reasonable? Does it explain why the flashlight starts instantly? Reflect on these questions.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 28P: An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps, (a) What is the...

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