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J4-01. Parallel Plate Capacitor
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HomeJ. Electrostatics And MagnetostaticsJ4. Capacitance And PolarizationJ4-01. Parallel Plate Capacitor
J4-01. Parallel Plate Capacitor
Purpose
To demonstrate that the voltage across a capacitor is proportional to the plate separation.
Equipment
Parallel plate capacitor assembly with electrometer as photographed.
Images
Description
The parallel plate capacitor is charged to 1200 Volts using a chain of 300 Volt batteries, and the battery lead removed. (A series resistor limits the current from the batteries.) The plates may then be separated and the voltage observed using the electrometer, demonstrating that the voltage is proportional to the plate separation.
References
Herbert H. Gottlieb, Variable Capacitor, TPT 5, 86, (1967). ◙F. N. Yan and H. K. Wong, Force between the plates of a parallel-plate capacitor, AJP 61, 1153 (1993).
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See pagesj1. electrostatic charge & force
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See pagesj3. electric fields & potential
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See pagesj4. capacitance & polarization
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See pagesj5. magnetostatics
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See pagesj6. electromagnets
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See pagesj7. magnetic materials
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See pagesj1. electrostatic charge & force
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See pagesj3. electric fields & potential
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See pagesj4. capacitance & polarization
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See pagesj5. magnetostatics
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See pagesj6. electromagnets
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See pagesj7. magnetic materials
Physics Lab Demos