The 24x36mm high resolution grating is mounted in a standard 5x5 cm slide mount to provide an economical alternative for the classroom.
35mm standard glass slide mount is included....

Table balance, electronic balance and other different kinds are produced to meet the different demands.

It is used to demonstration of the basic principle of capacitance and storage of charge.
It comprises an insulated plastic vessel and the other outside, the dielectric plastic can....

The cover contains a mounted heating coil of about 1.5ohms resistance with standard binding posters for electrical connection. The supporting posts and coil are coated to prevent....

his particular set is intended to demonstrate phenomena and regularities of the " Direct Current Laws" course. More different electricity sets are also designed for their own use.