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An electron is released from rest at a point where the… | StemPy Lab
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An electron is released from rest at a point where the potential is -30 V. It moves to a point where the potential is +20 V. What kinetic energy does it have there, in eV?
Physics
Medium
High School (11–12)
Electricity & Magnetism › Electric Potential and Capacitance
Board Exam
AP
A-Level
IB
Created by
StemPy Lab
An electron is released from rest at a point where the potential is
−
30
-30
−
30
V. It moves to a point where the potential is
+
20
+20
+
20
V. What kinetic energy does it have there, in eV?
50
eV
50\ \text{eV}
50
eV
20
eV
20\ \text{eV}
20
eV
10
eV
10\ \text{eV}
10
eV
−
50
eV
-50\ \text{eV}
−
50
eV
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← A uniform field of 420 N/C points along the +x direction. Point B is 15 cm from point A, in the +x direction. What is VB - VA?
The graph shows how the potential changes along the x axis. In which part is the size of the field greatest, and in which direction does the field point there? →
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Electricity & Magnetism › Electric Potential and Capacitance
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