Excerpt from Laboratory Course in Electrochemistry
A brief description of the laboratory equipment which is provided for these experiments may be useful.
The laboratory receives current over three pairs of cables, two from the main Switch-board, and one running direc... tly from the storage battery in the basement. The advantage of this direct connection of the battery is that experiments cannot be interrupted by the accidental pulling of the wrong plug from the switch-board. The two pairs of cables from the switch-board are usually connected to 110 volts direct and alternating pressure respectively. From the cables wires are brought down to terminals above and at the back of each student's place at the laboratory desk. The 110-volt direct cur rent can be used only during the day, but the 10-volt battery and alternating pressures are always available. The battery current is used in the majority of experi ments, while the alternating current is useful for driving motors and heating electrolytes in experiments that are continued over night.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Hvis denne bog ikke er noget for dig, kan du benytte kategorierne nedenfor til at finde andre titler. Klik på en kategori for at se lignende bøger.