Monday, 22 July 2013 10:04
J3-21 FARADAY CAGE
Additional Info
- ID Code: J3-21
- Purpose: Demonstrates that the electric field within a closed conducting surface is zero
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Description:
When the cage is charged, the aluminum foil "pith balls" move away from the outside of the cage, indicating the presence of an electric field. However, on the inside of the cage the pith balls do not move away from the wire cage, indicating that there is no charge and therefore no electric field on the inside of the conducting surface.
Note that this is most easily charged with the charging materials from J1-01.
- Availability: Available
- Loc codes: J3, J1
Published in
J3 Electric Fields and Potential
Tagged under
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J3-01: EXISTENCE OF ELECTRIC FIELDS
Demonstrate the existence of electric fields and to map them semi-quantitatively Read More
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J3-02: ELECTRIC FIELD OF RING OF CHARGE - MODEL
Aid in the visualization of the electric field of a ring of charge Read More
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J3-04: ELECTRIC FIELD LINES - SOAP BUBBLES
Show the shape of electric field lines for a large dipole by observing soap bubbles move along the lines Read More
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J3-05: VAN DE GRAAFF - INDUCTION WITH SPHERES AND NEON BULB
Demonstrate the existence of electric fields and to identify the polarity of the charge on a sphere Read More
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J3-06 ELLIPSOIDAL CONDUCTOR
Demonstrates that charge distribution on a conductor depends on the surface curvature Read More
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J3-07: VAN DE GRAAFF - DISCHARGE TO VARIOUS RADII
Demonstrate that for a charged conductor a smaller radius produces a higher electric field Read More
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J3-08 VAN DE GRAAFFS - INTERACTING FIELDS
Shows field lines for two identical charges Read More
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J3-11: EQUIPOTENTIALS/LINES OF FORCE - ONE CHARGE
Aid in visualization of equipotentials and lines of force Read More
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J3-13 POTENTIAL SURFACE MODEL WITH E FIELD VECTORS
Illustrates the relationship between the electrostatic potential and the electric field Read More
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J3-14 FLUX MODEL - ELECTROSTATICS
Aid in visualizing flux at an angle through a surface Read More
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J3-21 FARADAY CAGE
Demonstrates that the electric field within a closed conducting surface is zero Read More
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J3-22: FARADAY CAGE - ELECTROSCOPE
Demonstrate that the electric field within a closed surface is zero Read More
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J3-23 FARADAY CAGE - RADIOWAVES
Demonstrates that radio waves cannot penetrate a Faraday cage Read More
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J3-24 HOLLOW CONDUCTING SPHERE
Demonstrates that charge resides on the outside surface of a conductor Read More
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