Two charged, parallel, flat conducting surfaces are spaced d = 1.4 cm apart and produce a potential difference of 655 V between them. An electron is projected from one surface directly toward the second. What is the initial speed of the electron if its comes to rest just at the second surface?
This is what I've been trying to do:
I tried to get everything on one side and just square it to find the initial speed. But I got an incorrect answer.
Why does this not work?© BrainMass Inc. brainmass.com October 24, 2018, 10:01 pm ad1c9bdddf
The equations you used look ok. Let's try again:
The potential energy should decrease by e*655 V = ...
A deceleration of an electron in an electric field is examined. The second surface electron speed is determined.
Four problems on electric field, charge, flux, charge density
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2. A point particle with charge q=80uC is placed at a corner of a cube of edge a=8.1cm. What is the flux through each cube face forming the corner? and each of the other cube faces?
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