Electrostatic field physics teaching demonstration device

Abstract

The invention discloses an electrostatic field physics teaching demonstration device. The device comprises an operation bottom plate, a tempered glass cover, supporting angle adjusting structures andstorage boxes, a plastic partition plate is arranged on the upper end face of the operation bottom plate. Iron sand is arranged on the upper end face of the plastic partition plate, the tempered glasscover is arranged on the outer side of the iron sand, the supporting angle adjusting structures are arranged at the four corners of the lower end face of the operation bottom plate, hanging rings areconnected to the upper portion of the lower end face of the operation bottom plate, and the storage boxes are arranged on the left side and the right side of the lower end face of the operation bottom plate. According to the invention, on-off of the first connecting wire can be realized through the arranged first current control structure, so that when the first connecting wire is powered on, anelectrostatic magnetic field can be formed around the powered-on wire according to the principle of generating magnetism through electricity, the iron sand in the tempered glass cover can be magnetically adsorbed through magnetic force of the generated magnetic field, and an intangible magnetic field can be embodied through the iron sand so that students can understand the magnetic field conveniently.

Description

technical field [0001] The invention relates to the technical field of electrostatic field physics teaching demonstration, in particular to an electrostatic field physics teaching demonstration device. Background technique [0002] The electrostatic field refers to the electric field observed when the observer and the charge are relatively static. It is a special form of matter that exists in the space around the electric charge, and its basic feature is that it has a strong effect on the static electric charge placed in it. Coulomb's law describes this force. When a charged object is close to another conductor, the charge distribution of the two conductors changes significantly. In physics, this phenomenon is called electrostatic induction. When equilibrium is reached, the field strength inside the conductor is zero everywhere, the conductor is an equipotential body, the surface of the conductor is an equipotential surface, the induced charges are distributed on the outer...

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of electrostatic field physics teaching demonstrative device, solves the existence of no specific demonstrative device to demonstrate the existence of electrostatic field when existing present electrostatic field physics teaching, and can't adjust demonstration angle during demonstration, makes Students in different positions watch, and at the same time, they cannot adjust various variables during the demonstration to adjust the demonstration effect

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