Electromagnetic induction demonstration device

A technology of electromagnetic induction and power supply, which is applied in the field of teaching aids, can solve the problems that teaching stays in theoretical lectures, students cannot intuitively understand the content, and the demonstration effect is not ideal.

Inactive Publication Date: 2008-01-30
徐永恺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Electromagnetic induction is one of the more important contents in physics teaching. In the past, due to the simple equipment or temporarily assembled experimental equipment, the observation results were not obvious, and the demonstration effect of teaching was not ideal, so that the teaching remained in the theoretical lecture, and students could not Intuitive understanding of what is learned

Method used

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  • Electromagnetic induction demonstration device

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Embodiment Construction

[0009] Electromagnetic induction demonstrator, as shown in the accompanying drawing, electromagnetic induction demonstrator, comprises power supply 1, base 2, circular magnet 3, coil 4, and described base 2 is provided with chassis 5, and described chassis 5 two ends are fixedly connected with One end of the first conductive support 61 and one end of the second conductive support 62 with grooves, the other ends of the first conductive support 61 and the second conductive support 62 are respectively connected to the positive and negative poles of the power supply 1, the The circular magnet 3 is fixed on the chassis 5 between the first conductive support 61 and the second conductive support 62, and the two ends of the coil 4 wound with enameled wire include two ends of the enameled wire. Remove half of the circumference of the shaft of the paint film, and the shaft can be detachably placed on the grooves of the first conductive support 61 and the second conductive support 62 to h...

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Abstract

The invention discloses an electromagnetic induction demonstrator which comprises a base which is provided with a chassis and a power source; wherein, the chassis is fixedly connected with a first conductive bracket provided with a groove and a second conductive bracket provided with a groove, the first conductive bracket and the second conductive bracket respectively are electrically connected with the positive pole and the negative pole of the power source, the grooves of the first conductive bracket and the second conductive bracket are provided with the rotary shafts with coils, the rotary shafts respectively are the positive pole and the negative pole of the input current of the coils, the circumference surface of the contact position of the rotary shafts and the conductive brackets is provided with a insulating barrier which cuts the electric access of the rotary shafts and the conductive brackets within a range of a certain angle; the chassis under the coils is provided with a circular magnetic. The invention has obvious teaching demonstration effect and simple structure and is beneficial to the students to understand the knowledge described in the book, so that the learning initiative of the students is cultured.

Description

technical field [0001] The invention relates to a teaching aid, in particular to a teaching aid for a middle school physics electromagnetic induction demonstrator. Background technique [0002] Electromagnetic induction is one of the more important contents in physics teaching. In the past, due to the simple equipment or temporarily assembled experimental equipment, the observation results were not obvious, and the demonstration effect of teaching was not ideal, so that the teaching remained in the theoretical lecture, and students could not Intuitively understand what you are learning. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an electromagnetic induction demonstrator with simple structure, obvious effect, strong intuitive feeling and obvious teaching effect. [0004] In order to achieve the above object, the technical solution of the present invention is: an electromagnetic induction demonstrator, which ...

Claims

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Application Information

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IPC IPC(8): G09B23/18
Inventor 徐永恺
Owner 徐永恺
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