2.2G: Potential on the Axis of a Charged Disc

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Jun 20, 2021
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- 2.2F: Potential in the Plane of a Charged Ring
- 2.3: Electron-volts

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The field on the axis of a charged disc is given in section 1.6.5. The reader is invited to show that the potential on the axis of the disc is

$V=\frac{2Q}{4\pi\epsilon_0 a^2}[(a^2+x^2)^{1/2}-x].\tag{2.2.9}$

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