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What is an Electroscope? An electroscope is an early scientific instrument that is still used to detect the presence, magnitude and type (+ve or -ve) of electric charge on a body. It is composed of a metal disc, metal rod and two metal leaves in a glass body. The metal leaves deflect in the presence of electrical charges. How does an ...

Arrange positive and negative charges in space and view the resulting electric field and electrostatic potential. Plot equipotential lines and discover their relationship to the electric field. Create models of dipoles, capacitors, and more!

Mar 23, 2024 · 通过定制特定的光斑点阵列， 2d 分束器 doe 技术能够为不同的应用需求提供精确的解决方案，进一步拓宽显微镜技术的应用边界。 随着自动化与数字化技术的不断进步，显微镜领域的自动聚焦技术也迎来了新的发展机遇。

This java applet demonstrates electrostatics in two dimensions. When the applet starts up you will see the electric field of two positive charges. The charges can be dragged around the screen with the mouse. Go through the items in the Example popup (located in the upper right corner) to view some interesting pre-defined experiments.

This version only does 2-D fields, but unlike the 3-D version it can also display the potential surface and demonstrate Gauss's law. Full Directions. Full screen version. Old Version. More applets.

验电器（electroscope）是一种检测物体是否带静电荷以及粗略估计带电量大小的仪器，这是物理学历史上的第一种电学测量仪器，今日通常用于物理教学。一般的验电器由顶部的金属球、金属杆和最低端的金属箔。

In this lab you will use a deceptively simple device, an electroscope, to study the nature of charge. The electroscope's primary working parts are two connected conducting foil leaves. Charge appears in two forms, positive and negative, and like charges repel.

3d Printable Electroscope by PrintableScience ...utube video http://youtu.be/wehg1m55ayq and then visit http://printablescience.com for an ongoing forum and complete information. grabcad

3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.