- Sections
- A. General Materials & Mathematics
- B. Statics
- C. Kinematics & Dynamics
- D. Rotational Mechanics
- E. Gravitation & Astronomy
- F. Fluid Mechanics
- G. Vibrations & Mechanical Waves
- H. Sound
- I. Thermodynamics
- J. Electrostatics & Magnetostatics
- K. Electromagnetic Principles
- L. Geometrical Optics
- M. Wave Optics
- N. Spectra & Color
- O. Vision
- P. Modern Physics
J1-13. Electrostatic Induction
Purpose
To illustrate charging by induction.
Equipment
Van de Graaff generator, electroscope, and two metal plates with insulating handles.
Images
Description
Run the Van de Graaff for a couple of seconds to develop a small charge on the dome. Hold the two plates touching each other near the dome (but do not draw a spark) with one closer to the dome and one further away. While the plates are near the dome, separate the two plates and then remove them from the area of the dome. The two plates will be equally but oppositely charged, as can be verified using the electroscope.
References
Oleg Jefimenko, How can An Electroscope be Charged This Way?, TPT 56, (1979). ◙Charging of an Electroscope, Little Stinkers, Phys. Teach. 3, 185-186, (1965). ◙Lecture Demonstrations Note Sheet: Directions for Electroscope Induction.
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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