- #1
indigojoker
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There's a small sphere of mass m that hangs by a thread. the sphere is between two parallel plates L apart. The sphere has a charge Q. What is the potential difference that will make the plates to assume an angel of 20 degrees with the vertical?
[tex]F=QE=mg \sin \theta [/tex]
[tex]E=\frac{mg \sin 20}{Q} [/tex]
[tex] V= - \int _0 ^L \frac{mg \sin 20}{Q}dx[/tex]
[tex] V= - \frac{mgL \sin 20}{Q}d[/tex]
i feel like this question should involve more work. was my thought process correct?
[tex]F=QE=mg \sin \theta [/tex]
[tex]E=\frac{mg \sin 20}{Q} [/tex]
[tex] V= - \int _0 ^L \frac{mg \sin 20}{Q}dx[/tex]
[tex] V= - \frac{mgL \sin 20}{Q}d[/tex]
i feel like this question should involve more work. was my thought process correct?