Velocity of Electron through potential difference

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Homework Help Overview

The discussion revolves around calculating the velocity of an electron that has been accelerated through a potential difference of 100,000 volts, focusing on the relationship between electric potential energy and kinetic energy in the context of electron dynamics.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the relationship between the potential difference and the kinetic energy of the electron, questioning how to apply relevant equations. Some seek clarification on the underlying concepts and formulas related to energy and velocity.

Discussion Status

Participants are actively engaging with the problem, with hints provided regarding the relationship between potential difference and kinetic energy. There is an ongoing exploration of relevant equations, but no consensus has been reached on a specific method or solution.

Contextual Notes

Some participants express uncertainty about the topic, indicating a need for foundational understanding of the concepts involved in the problem.

jono_69a
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Using your actual knowledge of the actual charge of an electron and the mass of an electron, determine he velocity of an electron that has been accelerated across a potential difference of 100000 volts.

Please show me how to do this question. Thanks
 
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Hint: when the electron in accelerated over the potential difference, its kinetic energy increases. Is there an equation that relates the electron's energy to voltage?
 
are you able to give me a little bit more infomation about how you find it. I don't really get this topic that well. Thanks
 
jono_69a said:
are you able to give me a little bit more infomation about how you find it. I don't really get this topic that well. Thanks

Energy supplied by the pd is VQ=Ve (e is charge on the electron) and all that energy goes into increasing the kinetic energy of the electron (what's the formula for kinetic energy?)
 

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