How to find potential difference between 2 parallel deflection plates

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Homework Help Overview

The discussion revolves around finding the potential difference between two parallel deflection plates in a physics context, specifically related to charged particles and electric fields.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the relationship between potential difference, charge, and kinetic energy, with one suggesting the use of energy equations to find velocity. Others express uncertainty about the next steps in the problem-solving process.

Discussion Status

The conversation includes attempts to clarify the relationship between potential difference and other variables, with some participants offering insights into how to relate energy gained by a charged particle to its kinetic energy. However, there is no explicit consensus on the next steps, as some participants express confusion.

Contextual Notes

Participants note the absence of certain variables, such as velocity, which complicates their ability to proceed with the problem. There is also an indication of a learning environment where participants are encouraged to explore their understanding without providing direct solutions.

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Homework Statement


Describe by pointform how to find potential difference between parallel deflection plates, ΔV₂ = ?
You don't have to solve.

ΔV1 = 1.38 kV
Δx = 5 cm
Δy = 0.49 cm
r = 5.2 cm
q = 1.6 x 10^-19 C
m = 9.11 x 10^-31 kg
k = 9 x 10^9 Nm^2/C^2

Homework Equations


ε = ΔV/d
W = ΔEe = qΔV
V = kq/r
Fe = kq1q₂/r^2
Fe = qε
Ee = kq1q₂/r

The Attempt at a Solution


i don't have the velocity so i don't know how. If i did have velocity i would find time.
 

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Last edited:
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I am on thin ice here, but its ok I am happy making a fool out of myself

Don't you use the potential between the cathode and the anode and the charge on the electron to calculate the energy gained in traversing the first part of your diagram and equate this to the kinetic energy to solve for the velocity as you leave the slit in the vertical anode

1/2 mv^2=eV
 
Last edited:
Ty what do I do after?
 
i have the initial velocity what do i solve for next? ε, acceleration, Fe, final velocity? how to find potential difference
 
Last edited:
never mind i got it.
 

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