CN203311709U - Experiment device for verifying existence and interaction of coulomb force - Google Patents
Experiment device for verifying existence and interaction of coulomb force Download PDFInfo
- Publication number
- CN203311709U CN203311709U CN2013204120412U CN201320412041U CN203311709U CN 203311709 U CN203311709 U CN 203311709U CN 2013204120412 U CN2013204120412 U CN 2013204120412U CN 201320412041 U CN201320412041 U CN 201320412041U CN 203311709 U CN203311709 U CN 203311709U
- Authority
- CN
- China
- Prior art keywords
- bead
- filament
- coulomb force
- insulation
- filaments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Communication Cables (AREA)
Abstract
The utility model relates to an experiment device for verifying existence and interaction of coulomb force, and the experiment device comprises an insulated base seat. The experiment device is characterized in that four insulated balls A, B, C, D having the same radius are respectively connected with one ends of four filaments, and the other ends of the four filaments are fixedly connected to the insulated base seat and equidistantly distributed on a circle; the four filaments have radiuses of 0.02-0.01cm and are high in flexible degree; and the filament connected with the insulated ball B is longest, the filament connected with the insulated ball A is shorter than the filament connected with the insulated ball B, the filament connected with the insulated ball D is shorter than the filament connected with the insulated ball A, and filament connected with the insulated ball C is shorter than the filament connected with the insulated ball D. The experiment device is capable of verifying the existence and the interaction of the coulomb force.
Description
Technical field
The utility model relates to physics facility, is specifically related to a kind of checking Coulomb force and exists and interactional experimental provision.
Background technology
In the high school physics textbook of existing various version, all be mentioned to " Coulomb law ", and introduced by Coulomb balance experimental verification Coulomb law, as " the Coulomb law demonstrator " of CN 2919415Y bulletin to the student.This demonstrator is with two electric globules, as the simulation points electric charge, special-purpose gauge outfit is installed in demonstration box, on gauge outfit, is provided with gravity adjusting device, connects fork and swing ball below the pendulum post; Because swing ball repeatedly swings and can produce error in experimentation, therefore, gauge outfit is provided with balancing controls, opens the chute seam at demonstration board, sets up the devices such as L shaped pole that mobile bead is housed; Outside demonstration box, operate, can make the mobile bead in case do all around, high and low position adjusting, to keep and the swing ball horizontal level, by the micro-force measurement frame meter of special making, solved coulomb force measurement problem in experiment.But this patent just proves the existence of Coulomb force.Also do not have now a kind ofly can verify Coulomb force and interactional experimental provision.
Summary of the invention
The purpose of this utility model is to provide a kind of checking Coulomb force and exists and interactional experimental provision, and it can verify that Coulomb force exists, and can verify again the interaction of Coulomb force.
A kind of checking described in the utility model Coulomb force exists and interactional experimental provision, comprise insulator foot, it is characterized in that: four equal insulation bead A, B, C, D of radius are connected with an end of four filaments respectively, the other end of described four filaments is located by connecting on described insulator foot, and the other end of described four filaments equidistantly distributes on a circle.
Described a kind of checking Coulomb force exists and interactional experimental provision, and the radius of its described four filaments is 0.02-0.01Cm, and suppleness is high; The filament of connection insulation bead B is the longest, and it is short that the filament of connection insulation bead A connects the filament of the bead B that insulate, and it is short that the filament of connection insulation bead D connects the filament of the bead A that insulate, and it is short that the filament that connects the bead C that insulate connects the filament of the bead D that insulate.
Described a kind of checking Coulomb force exists and interactional experimental provision, and the radius of its described insulator foot is 3-9cm; The radius of described four insulation bead A, B, C, D is 0.3cm-0.9cm.
Advantage of the present utility model: simple in structure, easy to operate, effect is directly perceived, can either verify that Coulomb force exists, and can verify again the interaction of Coulomb force.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Referring to a kind of checking Coulomb force illustrated in figures 1 and 2, exist and interactional experimental provision, comprise insulator foot 1, its design feature is: four equal insulation bead A, B, C, D of radius are connected with an end of four filaments 2 respectively, the other end of described four filaments 2 is located by connecting on described insulator foot 1, and the other end of described four filaments 2 equidistantly distributes on a circle.
Further, the radius of described four filaments 2 is 0.02-0.01cm, and suppleness is high; The filament 2 of connection insulation bead B is the longest, and it is short that the filament of connection insulation bead A connects the filament of the bead B that insulate, and it is short that the filament of connection insulation bead D connects the filament of the bead A that insulate, and it is short that the filament that connects the bead C that insulate connects the filament of the bead D that insulate.
Further, the radius of described insulator foot 1 is 3-9cm; The radius of described four insulation bead A, B, C, D is 0.3cm-0.9cm.
During experiment, two of induction machine electric discharge beads are placed on respectively to insulation bead A and C, between B and D, shake induction machine charged to A, B, C, tetra-insulation beads of D.After a period of time, two insulate bead A and C band like charges, like charges that two other insulation bead B is opposite with C with insulation bead A with the D band.Due to the interaction of Coulomb force between electric charge, originally insulate bead A and C, insulation bead B and D bead are the state of mutual repulsion, insulation bead A and B, insulation bead C and D bead are the state attracted each other, and four insulation beads start regular swing.In the process swung, because the carried charge of insulation bead is less, and variation occurred in the distance between each insulation bead, and variation has also occurred in the Coulomb force of therefore insulating between bead, has formed the state of irregular swing.
By insulation rod friction on silk etc., then contact respectively insulation bead A, B, C, D, four insulation beads just have been with electric charge, due to four insulation zona glomerulosas be like charges, the suppleness of filament 2 is high in addition, therefore under the effect of Coulomb force, just swing between them, the swing effect of Coulomb force mutually of being insulated between bead A, B, C, D, along with the loss of insulation bead electric charge, the direction of swing and position each other also change, and whole swing is irregular.
Claims (3)
1. a checking Coulomb force exists and interactional experimental provision, comprise insulator foot (1), it is characterized in that: four equal insulation bead A, B, C, D of radius are connected with an end of four filaments (2) respectively, it is upper that the other end of described four filaments (2) is located by connecting on described insulator foot (1), and the other end of described four filaments (2) equidistantly distributes on a circle.
2. a kind of checking according to claim 1 Coulomb force exists and interactional experimental provision, it is characterized in that: the radius of described four filaments (2) is 0.02-0.01cm, the filament (2) that connects insulation bead B is the longest, it is short that the filament that connects the bead A that insulate connects the filament of the bead B that insulate, it is short that the filament that connects the bead D that insulate connects the filament of the bead A that insulate, and it is short that the filament of connection insulation bead C connects the filament of insulation bead D.
3. a kind of checking according to claim 1 and 2 Coulomb force exists and interactional experimental provision, and it is characterized in that: the radius of described insulator foot (1) is 3-9cm; The radius of described four insulation bead A, B, C, D is 0.3cm-0.9cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204120412U CN203311709U (en) | 2013-07-11 | 2013-07-11 | Experiment device for verifying existence and interaction of coulomb force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204120412U CN203311709U (en) | 2013-07-11 | 2013-07-11 | Experiment device for verifying existence and interaction of coulomb force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203311709U true CN203311709U (en) | 2013-11-27 |
Family
ID=49617900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204120412U Expired - Fee Related CN203311709U (en) | 2013-07-11 | 2013-07-11 | Experiment device for verifying existence and interaction of coulomb force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203311709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104978889A (en) * | 2015-06-18 | 2015-10-14 | 张万广 | Wrapped electrified ball |
-
2013
- 2013-07-11 CN CN2013204120412U patent/CN203311709U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104978889A (en) * | 2015-06-18 | 2015-10-14 | 张万广 | Wrapped electrified ball |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102841129B (en) | Gravitational field simulation device and method for geotechnical engineering model test | |
| CN202092851U (en) | Device for icing load simulation test of overhead line | |
| CN203311709U (en) | Experiment device for verifying existence and interaction of coulomb force | |
| CN104064089B (en) | Platform is probed in ampere power Comprehensive Experiment | |
| CN204576909U (en) | A kind of weightless test platform | |
| CN102226956A (en) | Magnet with single polarity on one side and magnetic suspension device formed thereby | |
| CN209069542U (en) | Experimental rig for battery pack | |
| CN105528945A (en) | Static acceleration demonstration instrument | |
| CN203250451U (en) | Coulomb's law demonstration device | |
| CN203397777U (en) | Cable balancing pole | |
| CN102654519B (en) | Small corona cage and wire erection device | |
| CN103280142A (en) | Experimental apparatus for exploring and demonstrating momentum theorem | |
| CN209571122U (en) | A kind of immersion electric leakage body-sensing device | |
| CN203941646U (en) | Platform is probed in Ampère force Comprehensive Experiment | |
| CN203616092U (en) | Battery pack high-altitude drop testing device | |
| CN209168493U (en) | A kind of physics teaching experiment with simple pendulum apparatus for demonstrating | |
| CN105070155A (en) | Circular motion teaching demonstration instrument and use method thereof | |
| CN103456209B (en) | A kind of acceleration of gravity measures apparatus for demonstrating and demenstration method | |
| CN103226908B (en) | Interfered gravity field experiment device | |
| CN202677681U (en) | Lenz law demonstrator | |
| CN203659283U (en) | Energy conversion teaching aid | |
| CN205080800U (en) | Physical arrangement stability demonstration appearance | |
| CN202076062U (en) | Magnet with single face presenting single polarity and magnetic suspension device composed of same | |
| CN207602112U (en) | A kind of experimental provision for verifying electromagnetic induction law | |
| CN204315138U (en) | A kind of economic mathematics teaching curved surface demonstration teaching aid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20170711 |