Glass high temperature conducting demonstrator

Abstract

The invention discloses a glass high temperature conducting demonstrator including a test table board, a test table body and a non-slipping block arranged on the bottom end of the test table body. Aninsertion board made of insulation and polyethylene material is arranged on one side of the test table body. Jacks are arranged on one side of the insertion board while a first drawer and a second drawer are arranged on the other side. The surface of each of the first drawer and the second drawer is provided with a pull button made of waterproof and anti-slipping rubber. An AC / DC voltage stabilizing power source, a milliammeter, a millivoltmeter, a diode pedestal, a switch pedestal and a rectangular pedestal are disposed on the surface of the test table board. The top end of the AC / DC voltagestabilizing power source is provided with an AC / DC transformer. One side of the AC / DC voltage stabilizing power source is provided with a power switch. Side faces of the AC / DC voltage stabilizing power source and the AC / DC transformer are provided with lead holes. Short leads are mounted in the lead holes. The AC / DC voltage stabilizing power source is electrically connected with the AC / DC transformer. According to the invention, a physical phenomenon that glass in high temperature can conduct electricity is verified through heating a glass rod by an alcohol blast burner.

Description

technical field [0001] The invention relates to the technical field of conductive demonstrators, in particular to a glass high-temperature conductive demonstrator. Background technique [0002] Glass can conduct electricity at high temperature. I believe that many educated people know that in the second grade of junior high school, there is such an experiment in physics books, which verifies that glass at high temperature has the property of conducting electricity. This experiment was conducted by students A demonstration experiment learned when I first came into contact with physics. This experiment can not only stimulate students' strong interest in physics, but also exercise students' hands-on ability through hands-on experiments, and lay a solid foundation for future physics experiments. Basically, the equipment needed for this experiment is very simple. It only needs a power supply connected to the heated glass. If a current is generated inside the glass, the experiment...

AI Technical Summary

Problems solved by technology

[0003] Although the experimental principle of this experiment and the required instruments are very simple, there are really big defects in this experimental demonstrator. Because the power supply used is a household 220V power supply, too high voltage will cause too high Potential safety hazards, and most of the heating instruments currently used are alcohol lamps. Alcohol lamps are not only low in safety, but also the heating speed is too slow, which will delay a long time. Due to the lack of good detection equipment, when a small current is generated inside the glass, can't be detected

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