(adsbygoogle = window.adsbygoogle || []).push({}); 1. At what angle should a 1kV electron beam with a total current of 1mA leave an electron gun in order that the cross section of minimum diameter will occur on a screen 25cm away? The original diameter of this beam is 2mm.

2. Cannot find equations in book or notes anywhere.

3. No attempt, just looking for some help maybe in the form of equations please.

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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# Homework Help: What angle should an elctron beam leave an electron gun?

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