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Transcribed Image Text:7) An electron moves between two plates and
experiences an increase in kinetic energy
of 3.4×10-15 J. Calculate AV-VA-VB of the
VA
VB
A
plates.
8) A 3.0-cm-diameter parallel-plate capacitor has
a 2.4 mm spacing. The electric field strength
inside the capacitor is 6.0x104 V/m.
What is the potential difference across the
capacitor?
9) What is the electric potential at
points A, B, and C in Figure
+
9
B
T₂
r₁
Suppose that q = 2.0 nC, r₁ = 1.1 cm, and r₂ =
2.0 cm.
10) A proton travels along the x-axis through an
electric potential V = (200 V/m)x. Its speed
is 2.5x105 m/s, as it passes the origin, moving
in the +x-direction. What is the proton's speed
at x= 1.0 m?
11) A capacitor is formed from
two 2.0 cm x 2.0 cm electrodes spaced
2.0 mm apart. The electrodes are charged
to ± 6 nC. What is the capacitor voltage?
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