
Concept explainers
The potential difference between the plates, and which plate is at the higher potential.

Answer to Problem 4P
The potential difference is
Explanation of Solution
Given info:
The charge of electron is
Kinetic energy is
Formula used:
Kinetic energy in accelerating the electron through the potential difference is,
Calculation:
Substituting the given values, we get
The electron moves from low potential to high potential, so plate B is at higher potential.
Conclusion:
Thus, the potential difference is
Chapter 17 Solutions
Physics: Principles with Applications
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