Experiment method directly utilizing DC to quantitatively verify Faraday law of electromagnetic induction
A technology of electromagnetic induction and experimental method, applied in the field of physical experiments
Inactive Publication Date: 2018-04-13
郝立宇
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According to what we know, using direct current with adjustable current intensity, designing a novel intuitive and quantitative experiment that directly uses direct current to verify Faraday's law of electromagnetic induction has not yet been patented and reported in the literature.
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[0030] Below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation methods and features provided according to the present invention are described in detail as follows:
[0031] Such as Figure 1-Figure 3 As shown, an experimental method for directly using direct current to quantitatively verify Faraday's law of electromagnetic induction, the implementation steps are as follows:
[0032] 1. Prepare experimental equipment
[0033] 1 DC 30V regulated power supply, 1 DC 12V power supply, 1 sliding rheostat, 2 switches, 1 pointer sensitive ammeter (accuracy 10 -10 ~10 -12 A, full-scale current 30μA), 1 mA meter (range 300mA), 1 rotary potentiometer (resistance range 100Ω~2.2MΩ, rated voltage 50V), timing low-speed 6-speed motor 1, multimeter 1 piece, 1 piece of solenoid (4cm in diameter), 1 piece of 4-turn parallel coil (10cm in diameter), 1 piece of coil and solenoid support, and several wires.
[0034] 2. Description of some expe...
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The invention relates to an experiment method directly utilizing the DC to quantitatively verify the Faraday law of electromagnetic induction. The method comprises steps that firstly, experimental apparatuses are prepared, including one DC 30V voltage stabilizing power supply, one DC 12V power supply, one sliding rheostat with the resistance range of 0omega to 200omega and the working current of 1A, two switches, one pointer-type sensitive current meter with the precision of 10-10~10-12A and the full-scale current of 30muA, one milliampere meter with the range of 300mA, one rotary potentiometer with the resistance range of 100 omega~2.2Momega and the rated voltage of 50V, one timing low speed 6-gear speed control motor, one multimeter, one solenoid with the diameter of 4cm, one four-loop parallel coil with the diameter of 10cm, one coil, one solenoid bracket and several wires; secondly, experiment operation is carried out; lastly, data processing is carried out. The method is advantaged in that design is reasonable and novel, performance is safe and reliable, operation is simple and convenient, students are facilitated to more vividly and visually understand the Faraday law of electromagnetic induction, and certain economic benefits and great social benefits are realized.
Description
technical field [0001] The invention relates to a physical experiment method, in particular to an experimental method for directly using direct current to quantitatively verify Faraday's law of electromagnetic induction. Background technique [0002] Faraday's law of electromagnetic induction discovered in 1831 is one of the most important discoveries in physics. Together with the Oersted effect discovered in 1820, it reveals the important relationship between electrical and magnetic phenomena that are interconnected and mutually generated. The discovery of Faraday's law of electromagnetic induction has epoch-making significance in both science and technology. It not only enriches human's understanding of the nature of electromagnetic phenomena, promotes the development of electromagnetism, but also opens up a wide range of application fields in practice. It can be said that without the discovery of Faraday's law of electromagnetic induction, there would be no modern scienc...
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IPC IPC(8): G09B23/18
CPCG09B23/181
Inventor 郝立宇谭明王啸天谢宁郝延明
Owner 郝立宇