Where is the electron in this picture.

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The discussion revolves around the positioning of an electron in a magnetron under the influence of an electric field at its maximum. Participants argue that the electron is least likely to be found at the 12:00 and 3:00 positions due to energy gain in those areas. The impact of closing the magnetron's output is also considered, with suggestions that the work done by the electric field on the electron averages to nearly zero in that scenario. Overall, the consensus leans towards identifying specific positions where the electron is unlikely to be found based on energy dynamics. Understanding these dynamics is crucial for analyzing electron behavior in magnetrons.
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The path of an electron in a magnetron is shown along with the electric field, see below. Assume the electric field shown is maximum at time t. Without calculation can you argue and approximate where along the electron path is the most likely positions of the electron at time t?

Picture in, An Introduction to Microwaves, page 54, F. A. Wilson.

Thanks for any help!
 

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Spinnor said:
The path of an electron in a magnetron is shown along with the electric field, see below. Assume the electric field shown is maximum at time t. Without calculation can you argue and approximate where along the electron path is the most likely positions of the electron at time t?

Picture in, An Introduction to Microwaves, page 54, F. A. Wilson.

Thanks for any help!

Could we safely say it can't be at the 12:00 and 3:00 positions as the electron gains energy in those positions?
 
Last edited:
Spinnor said:
Could we safely say it can't be at the 12:00 and 3:00 positions as the electron gains energy in those positions?

Assume the magnetron above is one for a microwave and is producing microwave energy. Does the answer above change much if the output of the magnetron is "closed"?

Thanks for your help!
 
Spinnor said:
Assume the magnetron above is one for a microwave and is producing microwave energy. Does the answer above change much if the output of the magnetron is "closed"?

Thanks for your help!

Could we argue that with the output closed the integral of the work done by the time varying electric field in the magnetron on the electron averages nearly to zero ( zero except for the loses of a closed magnetron)?
 
Spinnor said:
Could we safely say it can't be at the 12:00 and 3:00 positions as the electron gains energy in those positions?

Better to say above that the electron is least likely to be found at the 12:00 and 3:00 positions?
 
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