Experimental device for exploring factors influencing magnitude of electromagnetic force

An experimental device and the technology of electromagnetic force, which are applied in the direction of educational appliances, instruments, teaching models, etc., can solve problems such as troublesome operation and unintuitive experimental results, and achieve the effects of convenient operation, improved practicability and convenience, and low production cost

Inactive Publication Date: 2019-05-10
金有芝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For electromagnets, students can explore the factors that affect the magnitude of its electromagnetic force through experiments, but the existing experimental devices have problems such as insufficiently intuitive experimental results and cumbersome operation; so an experimental device is urgently needed to make Students can more conveniently carry out the exploration experiment of electromagnetic force

Method used

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  • Experimental device for exploring factors influencing magnitude of electromagnetic force
  • Experimental device for exploring factors influencing magnitude of electromagnetic force
  • Experimental device for exploring factors influencing magnitude of electromagnetic force

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Refer to attached Figure 1-2 , this embodiment provides a kind of experimental device that is used to explore the factors that affect the magnitude of electromagnetic force, including a power pack and three sets of iron nails 5; wherein, the above-mentioned power pack includes several sets of battery boxes 8, which can be used to install batteries; the above-mentioned Several groups of battery boxes 8 are connected in series and placed on the base 1; in addition, adjacent battery boxes 8 are detachably connected, which is convenient for adjusting the number of batteries in series in the battery box 8, so that different current sizes can be explored Does it affect the magnitude of the electromagnetic force?

[0027] Further, two sets of support plates 2 are symmetrically fixed on the above-mentioned base 1, and the first layer of mounting plates 3 and the second layer of mounting plates 4 are sequentially fixed between the above-mentioned two sets of support plates 2. ...

Embodiment 2

[0032] Refer to attached Figure 3-4 , in order to facilitate the judgment of whether the wire 6 wound by the iron nail 5 is carrying current, this embodiment is improved on the basis of embodiment 1. Specifically, a group of lamp holders 12 are installed on the above-mentioned base 1, and the above-mentioned lamp holders 12 A group of light bulbs 13 and two sets of second terminal posts 14 for two sets of positive and negative poles are installed on the top. The above-mentioned light bulbs 13 are electrically connected with the wires 6 wound on the three sets of iron nails 5, and are connected with the battery box 8. The batteries are connected in series to form a circuit loop. When one group of wires 6 in the wires 6 wound on the three groups of iron nails 5 has an electric current, the bulb 13 will all be bright, so it can be quickly judged whether the wires 6 wound on the reorganized iron nails 5 have an electric current.

[0033] The experimental device provided by the p...

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Abstract

The invention discloses an experimental device for exploring factors influencing the magnitude of an electromagnetic force, belonging to the field of physical experiment equipment. The experimental device comprises a power supply group and multiple groups of iron nails, wherein the iron nails are wound with leads, the leads winding the iron nails form a shunt circuit with the power supply group, and the numbers of turns of the leads winding different groups of the iron nails are different; the experimental device is further provided with multiple groups of placement blocks for placing small steel balls, and multiple groups of the iron nails are respectively vertically mounted right above multiple groups of the placement blocks; and the power supply group comprises multiple groups of battery boxes for placing batteries, the battery boxes are connected together in series, and the adjacent battery boxes are detachably connected. Multiple groups of the battery boxes are detachably mounted,and multiple groups of iron nails wound with leads with different numbers of turns are arranged, so that students can conveniently explore whether the electromagnetic force is influenced by differentnumbers of turns of the leads and different current magnitudes.

Description

technical field [0001] The invention relates to the field of physical experiment equipment, in particular to an experimental device for exploring factors affecting the magnitude of electromagnetic force. Background technique [0002] Every day on campus, students listen to the ringtones to go to and from get out of class. How can the bell ring if no one knocks it with their hands? Maybe some students know that it is because of the electromagnet, but how does the electromagnet make the electric bell sound? . As we all know, an electromagnet is a device that generates electromagnetism when it is energized. It is a conductive winding that matches its power and is wound outside the iron core. This current-carrying coil is magnetic like a magnet. Electromagnet is an application of current magnetic effect, which is closely related to life. An electromagnet is a device that can generate magnetism through an electric current. It is a non-permanent magnet, and its magnetism can be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/18
Inventor 金有芝邝吉恒黄涛
Owner 金有芝
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