Harish Kumar.A Posted June 2, 2012 Share Posted June 2, 2012 Hello friends, I have heard that drift speed of electron is very slow.But my question is then how does bulb light instantly when we switch on??? And how did one calculate the drift speed of electron in a wire?? Link to comment Share on other sites More sharing options...
Klaynos Posted June 2, 2012 Share Posted June 2, 2012 How to calculate it: http://en.wikipedia.org/wiki/Drift_velocity#Numerical_example How a light bulb lights... Imagine a tube full of marbles and open at both ends. These marbles will represent out electrons. Now what happens when you push a marble in the end? Link to comment Share on other sites More sharing options...
Harish Kumar.A Posted June 2, 2012 Author Share Posted June 2, 2012 How to calculate it: http://en.wikipedia....merical_example How a light bulb lights... Imagine a tube full of marbles and open at both ends. These marbles will represent out electrons. Now what happens when you push a marble in the end? Understood!! but how to calculate the drift speed??? Link to comment Share on other sites More sharing options...
Klaynos Posted June 2, 2012 Share Posted June 2, 2012 The wikipedia link provides an example of how to calculate the drift velocity (it's a velocity not a speed as it has an associated direction). Link to comment Share on other sites More sharing options...
Harish Kumar.A Posted June 2, 2012 Author Share Posted June 2, 2012 The wikipedia link provides an example of how to calculate the drift velocity (it's a velocity not a speed as it has an associated direction). Thank you!!! Link to comment Share on other sites More sharing options...
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