In the following picture, we have a proton in between two parallel plates. 1. Find the potential difference between the plates. 2. Calculate the electric field strength between the plates. Draw the direction of the field. 3. At what potential is the proton?
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Electric Potential (Voltage)
Uniform Electric Field
In the following picture, we have a proton in between two parallel plates.
1. Find the potential difference between the plates.
2. Calculate the electric field strength between the plates. Draw the direction of the field.
3. At what potential is the proton?
4. Calculate the electric potential energy the proton has at this location.
5. The proton is now moved to the top plate. In moving the charge to this location, is it gaining or losing energy?
6. How much work is needed to move the proton to the top plate? How does this compare to the energy difference between 40 V line and the top plate?
7. If the proton were let go, how much kinetic energy would it have as it passes through the original 40 V location? Justify:
□ More than the work done to put it at the top plate.
□ Less than the work done to put it at the top plate.
□ Same amount as the work done to put it at the top plate.
8. Calculate how fast it will be moving when passing through the 40 V potential line.
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